I've got to tell you, this may be the best version of Windows ever. It always seemed like Microsoft launched Vista way to early, the OS just wasn't ready. XP was working very well, at the time, and didn't seem dated at all. I never could understand why they launched Vista when they did.
Well, Windows7 is what Vista should have been. The "every other Microsoft OS" rule still applies. I wonder how much market share Microsoft lost during the Vista era? The commercial release version of Windows7 is scheduled to go on sale in October 2009. If you need a new computer, hold on until then.
If you're a techno-geek, go ahead and try Win7's RC1. You'll be glad that you did!
Thank you to everyone for your suggestions and advice.