For the motherboard-cpu, you need to list a budget, and whether you will use ddr2 or ddr3. Newegg has several combo deals with some of the dual core regors that use ddr2, and one combo that comes with 4 gigs of ddr2, board, and regor 240 for $217. I use frys combo specials. They have a 425 tri core amd with gigabyte board for $69.99 after rebate now. The board may even unlock the 4th core.