Hi all, I'm looking to upgrade my system but i'm a little confused what parts to renew. My current system: I7 2600k Asus p8p67pro 16gb Corsair Vengeance 1600mhz 2 x Gainward gtx 570 gs "Goes like hell" (SLI) 1000w OCZ GOLD PSU I use my system mainly for gaming on 1080p on my 55' LED TV. I've run into some problems with the latest games. Far Cry 3, BF3, ... They can not maintain a solid 60fps anymore. (GPU memory bottleneck?) and seem a little stuttery. I like to play all games on ultra with lots of AA. What would you guys recommend to upgrade? I was thinking I7 3770K - ASUS Z77 Sabertooth GTX 680 SLI (OR 690) or GTX 670 4gb SLI Please let me know what you think.