Hi,

Using 2 pc's.
One with Vista x64 Ultimate, and the other with Vista 32 Home Premium. (only programm installed on this one is wow x2)
Both work perfectly well with wow, no issues whatsoever. The x64 vista machine has a bit more power regarding the video, 8800GT 1GB.
Cryinsham makes a valid point, XP x64 was struggling with drivers in the beginning, Vista x64 is not.

Both machines have 4gb, so no lag.
I run 2 wows on each pc, on the one with the 8800 GT one client is set to nice and shiny gfx, the others aren't.
I could run 4x wow on it, but then the screen would be too small for my liking, i still want to see what i do.

Regarding the Keyclone issue, copy it to the new pc, and send mr Keyclone a pm with the old license code and the license code, he will tranfers it as soon as he can. No need to buy it again.

Have fun.