Right now newegg has a deal for the MSI GTX 660 Ti/OC for $239 (with a rebate) vs. the same card in a PE addition for $289 (with rebate) or the no OC PE addition for $279. I have two questions, 1) is the PE addition really worth the extra money? I know if has two fans so its likely to run a little cooler/quiter, but does that justify the price increase? And 2) if I plan to OC the card on my own does spending the extra money on a factory OC do me any good? Lastly... A separate question, EVGA has the non OC 660Ti for only $229 with rebate. Anyone have any particular reasons to go MSI over EVGA if I go with the non PE version? Thanks in advance!