With the 8350 and that mobo, I'd look at 2x4GB or 2x8GB of 1866 or 2133 either w/ a CL of 9 - how much you'll want/need will depend on what all you'll be doing w/ the rig, if basically just gaming, then 8GB will suffice, if working with the rig, (multi-tasking, video work, imaging), that type thing might want to go 16G otherwise you might find yourself wanting more DRAM shortly