I have a msi 7800 gt, would getting another one for sli be better than a single, newer card such as a 7900 or 7950? If it would be worse how much so, alot or a little? Also i have a amd 64 3500, would a amd 64 X2 4400 be loads better or just a little better. I've already got 2 gig of ram but can only max out bf2 settings with perfect framerates at 1024x768 res and x2 AA. Lastly, is my processor holding back my graphics card? Would a amd x2 4400 make all the difference? I don't wanna spend shitloads, so i'm hoping just a better processor should see me good for a couple of years.