Refactor!™ for ASP.NET: It simplifies coding asp.net, and comletely free.

"Refactor! is freely available to all ASP.NET 2.0 developers and offers a comprehensive suite of tools that enable you and your team to simplify and shape complex code and HTML markup - making your web applications easier to read and less costly to maintain." Devexpress

Read more and also download the free tool.

http://www.devexpress.com/Products/NET/IDETools/RefactorASP/