Windows 7 works with any newer boards. My ultimate version usually finds all the board device drivers without the motherboard cd. I suggest an amd dual core regor cpu with 785 micro atx board and 4 ddr3 slots. You can still get ddr3 fairly cheap right now, but prices have risen a bit after the holidays. Use 1333 corsair, kingston, samsung (hynix) or gskill. The 2x2 gb kits start at about $45 in the usa.