Hmmm, concerning cost, no major problem! I want a good intel processor so that it can run the Windows Server 2008 R2 without problem. And the workstations connected with it as well. On the workstations, I can put Intel i7 becaue some compouters will have VmWare.
Only the server I'm a bit hesited, whether to buy Xeon, or i7! The server will have 8GB RAM, internet speed 4MB!