So, currently I have a single 770 in my computer and I'm running three 1080p monitors and I noticed that I need some more performance. My 770 is a 4gb evga classified card. But Im wondering If I should get another 770 for the rig or if I should be getting rid of the 770, grabbing a 970 then waiting until I have the money to buy another 970 and just SLI to two 970s. I'm just really debating what I should do since I already have a 770 in the system. thanks!