Give a try for the CoolCommands for the Microsoft Visual Studio 2005 and Visual Studio 2008, which includes all the commands Microsoft should've included to the bundle from the vey beginning:
http://weblogs.asp.net/GMilano/archive/2006/02/27/439208.aspx
Also, if you're struggling from the poor IDE performance when your solutions are relatively big, following those guidelines might be a relieve: Go to first article to apply the tips and see if that is enough. If not, go to the second article...
http://www.thekua.com/atwork/?p=29
http://weblogs.asp.net/scottgu/archive/2006/09/22/Tip_2F00_Trick_3A00_-Optimizing-ASP.NET-2.0-Web-Project-Build-Performance-with-VS-2005.aspx