>BTW, I highly recommend getting the VS Productivity Power Tools. In VS 2010, Tools > Extension Manager. It includes a replacement for the Add Reference dialog that actually works. There are other things too in it that are definately worth getting this free add-on.

Another useful free extension is VSCommands, which I worked on (some of the specifications) with the developer who created it.

Another good one, created by the same developer, is StickyNotes.