Windows XP X64 Edition has been the unloved and overlooked middle child in the line up for some time. Drivers have always been lacking and updates quite spares. I do have to ask, why did you choose this version?
It's extremely rare for a worksation to require 4GB+ of RAM (IMHO the only really credible advantage of X64 XP) and there are hardly a lot of 64-bit only applications on Windows.
A small number of users on a platform that's already heading towards extended support means not many updates or much support, there's certainly no return to be had for Microsoft to add features or push towards XP x64 driver support.
If you want to go 64-bit then go 64-bit Vista, even then I question the need to do so and some manufacters are still being slow getting 64-bit Vista drivers out which is the main cause of Windows instability.
Darkheart
It's extremely rare for a worksation to require 4GB+ of RAM (IMHO the only really credible advantage of X64 XP) and there are hardly a lot of 64-bit only applications on Windows.
A small number of users on a platform that's already heading towards extended support means not many updates or much support, there's certainly no return to be had for Microsoft to add features or push towards XP x64 driver support.
If you want to go 64-bit then go 64-bit Vista, even then I question the need to do so and some manufacters are still being slow getting 64-bit Vista drivers out which is the main cause of Windows instability.
Darkheart