Hey I'm in serious need of a graphics card upgrade, (mine is 4 years old). Looking to gather some opinions on what would be the best graphics solution to fit in my SFF setup. The case I'm using is a Lian Li v351. I need a card that can fit & it would probably be good if it didn't generate insane ammounts of heat (like an hd 4870). Right now I'm looking at either a HD 4890 or a HD 5770. I hear the HD 4890 is better & cheaper but the HD 5770 uses less energy/ less heat & is smaller. (also has new DX 11 support if that counts for anything.) Any input appreciated thanks.