Alright so I just want ask a simple question of you guys. I've had my build for a couple months now and it runs smooth as can be. Now I have an ASUS GTX660Ti video card in my PC and would like to SLI it before BF4 comes out. I'm wondering if it pays to go SLI or to just upgrade later to a single more high end card setup. I am running 1920x1080 and definitely have a little wiggle room with my 750w PSU. Just trying to gauge what everyone thinks.