image If you are a web developer just evaluating  ASP.NET 3.5 and VS2008, I strong recommend you go grab VS2008 Web Express and the updated ASP.NET AJAX Toolkit.  It is full of some really great AJAX controls for ASP.NET...  It is a community driven open source project that Microsoft has put some full time developers on to seed.   I love to use these controls in my application building and demos... I am sure you will to!

Please check out the sample website page to see all the controls in action!