Hey guys. I am in need of a graphics update, and am currently deciding between two 760s in sli or a 770 4gb. I play games heavily modded w/ texture packs, so I am worried that 2gb on the 760s will not be enough? I play at 1080p on one monitor. The only thing holding me back from getting two 760s is lack of vram... All opinions are appreciated, thanks all.