FFS Karlos!!!! Look at your specs. You don't have a garden variety PC there. It runs Vista ok? No kidding!! Keep throwing a gazillion CPU's and gigabytes of super fast RAM, ANYTHING will fly. Thats the point.
What about running Vista in VirtualPC on a single core 2200mhz AMD with a gig of RAM, already running XP as the host?
I do that on a pretty regular basis, and Vista works fine.