I don't know about the mobo you should get, but I just upgraded to the phenom ii x4 830 from microcenter. You could get the 830 or 840 for $50. The 840 is higher GHz but doesn't have any L3 cache. The only difference you will notice is in certain applications. If you can find a mobo that will have the correct socket I would definitely recommend going with one of these two. At this price they can't be beat. I just upgraded from a phenom ii x2 555 Black 3.2 GHz to the phenom ii x4 830 2.8GHz. HUGE DIFFERENCE. Go for it while the deal is still good.