Go for MSI RS 480 M2(Socket 939) Board. It has a PCI-Express Slot, ANd X300 CORE ONBOARD GRAPHICS WITH 128 MB OF ONBOARD MEM; with all the features you need to have in any high-class MBD.
you will save a lot money on graphics card and will be able to buy more RAM, bigger HDD, DVD RW, TV tuner, etc.
well, the decision is yours!