Well i'll be getting a single ultra, so thanks for helping me choose that, now comes the fun of finding a good ultra. that one on microcenter looks pretty good but they dont ship to canada i heard good things about the xfx ultra's. Another thing is what is a good PSU to power an ultra? i will be running a q6600, probably 3-4 HD's. around 6 case fans and a CPU cooler. also what is a good cpu cooler...... :S