I am looking to see what everyone would purchase if money wasn't to much of a concern. We work with extremly large assemblies and have to make exploded drawings of those large assemblies which are never fun on our current systems. 64 bit? XP over Vista? Quad over Dual? Your help is greatly appreciated. We are benchmarking a XP 64 bit Dell 690, 8gig ram, Nvidia Quadro FX 3450/4000 SDI, but here is the kicker it only has a pentium 4 CPU. I don't know if IT has been sitting on this computer for a while or if it is something SW has recommended I am not sure. I was hoping maybe someone could shed some light on this.