You can jump on now, but of you're computer is pretty decent (mine is a 3200+, so, I'm set), I say wait a tad long. I'm probably gonna buy my next system once Longhorn comes out, no point buying a 64bit if it isn't fully used (though I do admit, yes, they do have quite an advantage over 32 bit processors). As for the vid cards same deal... go ahead, the echnology is rather new, so I say wait til the next gen of stuff.