So I was able to legitimately acquire a copy of XP x64 for far less than I could get a copy of any of the x64 Vista's... and since it's time for the bi-decade OS nuclear orbital bombardment. I was thinking I'd try it instead of 32bit XP... Just to actually make use of ram and such... (4G's and 2 512 video cards and lots of hardware that actually needs an address on the mem-table means I'm wasting a lot of power on 32bit)

So has anyone else here used it? I'd go with a 'nix box but there's still a few pieces of software that I really need Windows for, but I'm worried about stuff like GIMP and Inkscape... are the win-binaries stable under x64... should I grab source code and compilers instead (not against this, just no experience with compiling source on Win boxes...)?