Daniel,
I am a web developer who works extensively in .NET web applications and web services. I use SharpDevelop to solve a number of problems with Visual Studio .NET. Recently I saved myself a great deal of time and work by using the VB to C$ translation utilities - amazing.
Depending on how your team is organized, I 'd be happy to commit some time toward adding web application support to SharpDevelop. I lead a team of senior software engineers in developing database applications for the music industry, and we work extensively with VS 2005 Team Foundation, so I am very familiar with the features we might want to include in SharpDevelop.
If you are interested, let me know what your development and engineering cycles are, and we'll see if we can work up a project plan.
Thanks to you and all the team for what you have done so far - it's great to have a fall back when Microsoft falls down...
John Johansen