Honestly, I never knew the difference till I got it. I saw XP in the options and overlooked the x64 part. Likely I will end up upgrading to Vista since x64 seems to be a dead end OS only meant for development of the 64 bit stuff.
Live and learn I guess <img src="/images/graemlins/blush.gif" alt="" />
it's not that x64 is a deadend os... it's XP that is getting killed.. x64 just came out too late... but with Vista around the corner.. it's not a long wait.. though I would be weary of bugs in the first batch..