hello, i have a dell optiplex gx280 small form factor desktop pc. i want to upgrade the video card so i can play some decent games[neverwinter nights 2] but i have no idea what i'm doing. i guess i need a low profile card,but wich one? pci or pci-e? also don't want to buy one my computer can't handle and burn it up or something. someone please help! p.s my pc is a 32-bit,so do i need a 32-bit card, or could i use a 64-bit? i bought this pc because it is way faster than my old one,but didn't know anything about video cards.