There's a new version of Virtual PC coming that has better support for WIn7. If you can wait for it, I would. But...there's no reason you can't run VS and SQL on Win7.

Yes, VS2010 will be 32 bit only. Read Rico Mariani's entire blog post to get the complete picture. http://blogs.msdn.com/ricom/archive/2009/06/10/visual-studio-why-is-there-no-64-bit-version.aspx

>As far as Visual Studio or SQL Server goes, I'd plan to use another box or a virtual machine since apparently Microsoft doesn't support them or doesn't know what they are. Maybe they'll work on Windows 7 - Microsoft doesn't think so.
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>Looking around trying to find info about Visual Studio and Wondows 7, I saw an interesting article that said Visual Studio 2010 would be *32-bit ONLY*. If true, that shows how pathetic Microsoft has become considering for the last 5 years at least they have been pushing 64-bit O/S and applications (while not necessarily delivering).
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>http://www.ditii.com/2009/06/12/visual-studio-2010-will-be-32-bit-exclusive-no-64-bit/