Thank you, and good afternoon. Our strong fourth quarter results capped off a substantial year of progress. After navigating through the biggest economic downturn in Autodesk history, we're now experiencing a healthy recovery and even achieving record results in several areas. Highlights for the quarter include: 16% growth in total revenue; double-digit revenue growth in all of our geographies and business segments; a sharp increase in large deal activity; record total billings; record revenue for our Manufacturing business; record revenue for our Revit family of products; record deferred revenue; and strong growth in cash flow from operating activities. We experienced strong year-on-year growth in all of our geographies with APAC again leading the way. Global revenue growth was led by our model-based design products. Our Manufacturing business had record quarterly revenue in the fourth quarter and grew 22% for the full year. Over the last few years the dynamics of the Manufacturing segment have shifted dramatically. Historically, engineering software was targeting different sized companies and competition mostly occurred within those strata. Our initial mission was to provide 80% of the functionality at 20% of the price. So truthfully, we're often seen as a provider of high-value but less strategic software and we competed infrequently against our major global competitors. Today, we do much more than that original mission. Through sustained investment in R&D and targeted acquisitions, we now have a product portfolio that is the most comprehensive and functional in the industry, while staying true to our original mission of providing great value. The combination of our modeling, data management and simulation capabilities has allowed us to grow much faster than our major global competitors despite the difficult economic times. Coupled with the continuing investment by our channel partners and an increase in our direct sales effort, we are winning deals previously unavailable to us. Taken as a whole, we are substantially outperforming all of our major global competitors with stronger products and better sales channels. The Manufacturing segment continues to be our largest opportunity and I'm very optimistic about our market position and momentum. What might be surprising to some is the strong demand we're seeing in our AEC business around the world, including the Americas. We're even beginning to see a pickup in hiring in American AEC firms. There continues to be improving demand for BIM solutions to retrofit the aging infrastructure of developed countries as significant infrastructure build out of developing countries. These demand drivers led to record revenues for our Revit family of products. Growth in our Media and Entertainment segment was led by our Creative Finishing products, which had a very strong quarter in Japan. We also experienced nice customer adoption of our new Maya Entertainment Creation Suite, which we introduced back in August. At the start of the fiscal year, we identified an opportunity to elevate our presence within major accounts. These efforts paid off as we saw increased traction with major accounts throughout the year and as a result, recorded 31 transactions that each exceeded $1 million in the fourth quarter. For fiscal 2011, the number of large deals exceeding $1 million was a record as well. What's gratifying is that we're seeing big deal activity in all geographies and across all business lines and we look to further this initiative in FY '12. On the other end of the spectrum from large deals are our pro-sumer and consumer apps and products. Last month, we launched the Mac App Store addition of SketchBook Pro. On the first day alone, we effectively doubled the desktop user base for SketchBook Pro. And in just three weeks, we've seen more than a $0.5 million downloads of the free and paid versions combined. We also added to our growing line of consumer apps with the launch of the TinkerBox app for the iPad, a really cool game to spark interest in mechanical engineering in teens. Just after launch, TinkerBox was the number one free iPad game app and it's still in the top 10. Next up on the product release front will be our annual refresh happening in just a few weeks. Unique this year will be the launch of several new product suites across our business segments. For the past several years we've been on a path to develop greater interoperability and a more common user interface across our products and these efforts come to fruition with the launch of these suites. Each suite will deliver significantly more functionality and better interoperability at a much greater value to our customers. These suites were designed to be sold by our VAR channel and our goal for the first year is broad adoption of these suites. To accelerate our penetration into key markets, last week, we announced two pending acquisitions that we anticipate will close during the current quarter. Blue Ridge Numerics will be a complementary addition to our growing portfolio of analysis and simulation products and will broaden our solution set for digital prototyping. It will provide our customers with a spectrum of computational fluid dynamics capabilities that allows mechanical and building system engineers to virtually test and predict real-world behavior of new and existing designs and eliminate expensive physical prototyping cycles. We also announced our intent to acquire Scaleform, a leading provider of middleware and user interface tools for the media and entertainment market. This technology has already been licensed in the development of at least 800 games across all leading game platforms. We believe this technology will provide our customers with more complete workflows helping them to more rapidly develop immersive 3D and casual game experiences. Overall, we were very pleased with our fourth quarter results. As I flagged last quarter, our revenue over performance for the year led to higher performance-based compensation in the fourth quarter. These expense levels are not expected to recur as the incentive plans reset at the beginning of this fiscal year. Nevertheless, we still managed to exceed our operating margin targets for the year. Non-GAAP operating margin grew almost 500 basis points for the year and is a strong start to our five-year target of reaching a non-GAAP operating margin of at least 30%. We have a lot to be proud of in fiscal 2011. Our channel is strong, our direct sales team had a great year. We maintain strong cost controls and we significantly outperformed on all of the financial goals that we established at the beginning of the year. We continue to out-innovate and outperform our competition. As we look at fiscal 2012, we have a lot to be excited about. We have never been better positioned to capitalize on the market opportunities before us and we have the right people and products to be successful. The economic downturn was difficult for many but I want to take a moment to acknowledge the determination, resilience and creativity of our partners and employees who worked so hard and helped us emerge from the downturn stronger than when we entered it. Lastly, I want to acknowledge that we've promoted Steve Blum, to lead our global sales and services organization. For the past eight years, Steve has done a fantastic job leading our America sales team. He is highly respected by our customers, channel partners and employees. And we're confident that he'll do an equally good job in his new role. Operator, we'd now like to open the call up for questions.