i am thinking about which card i should buy this spring if i should get a used GTX580 3gb like a EVGA if i can, or if i should buy a brand new Sapphire Radeon HD 7950? u can see my system specs out in the left side. i have always been a little Nvidia fan having mostly that, like the 8800GT than a Sapphire VaporX HD5770 1gb and than Asus HD5770 1GB, than 8800GT again and than i got Palit GTX560 and got a MSI GTX460 HAWK both 1gb tried SLi wasn't for me, so sold one of them and later on when i bought a EVGA GTX 570 1280mb i sold my MSI card. i have used PhysX in games where i could and than used Cuda daily for decoding h264/x264/ccv1 code with CoreAVC, and yes ino my i5-2500k can do that, but still i dunno which card to take. i will be gaming new gamings and i am waiting on "BioShock: Infinite" to get out too and other new games. and last i have been thinking about buying a single slot GT440 or something for Cuda/PhysX if i go with a Sapphire Radeon HD7950 3gb since i use my botton PCI-E x4 for my Asus Xonar Essence STX audio card on my Asus Maximus IV Gene-Z/Gen3 so i want a little help what would be the best card for 1920x1080 gaming with everything on high.