I would go with the PNY 6 gb deal for $77 after rebate. I've used PNY from frys, and never had any problems with it. The ocz doesn't get very good reviews. The PNY runs at 1.65 volts, so you may have to manually set the voltage at the first post screen. Check the bios for the ram voltage. This is true of many brands running at 1600.