For Christmas I am wanting a new PC. I have had a look around and I decided I wanted a Quad Core processor. I noticed that Mesh sell some of their mid-range PCs with Quad Core processors so I have been looking at Meshs. Now, the exact one I want, MESH Computers - Award Winning PCs Since 1987 comes with 4GB RAM. That sounded great but I have been told you can only use the dreaded x64 Vista with 4GB RAM. Is this true?