With the WSS extensions for Visual Studio 2005/2008, you get a few useful templates to use when developing Sharepoint applications. Templates included are:
I've only tested the Web Part template so for, but at least that one work flawlessly. Get the WSS extensions for either Visual Studio 2008 or 2005 depending on which version you use:
Windows Sharepoint Services 3.0 Tools: Visual Studio 2008 Extensions, Version 1.2Windows SharePoint Services 3.0 Tools: Visual Studio 2005 Extensions, Version 1.1
WSS project templates installed in Visual Studio 2008:
Disclaimer The opinions expressed herein are my own personal opinions and do not represent my employer's view in any way.