i have a used Dell 3400+512MB-80GB-CDRWDVD with 17" LCD flat screen monitor w/ an AMD Semprorr processor. i also have another Kingston KVR400/512R card that does not want to fit and a 256 MB video card that i have not tried to install yet. what kind of ram card do i need to look for that would fit this PC and would anyone be interested in the 512 MB card i have now. maybe we could trade. I'm just wondering if what i have is an okay computer, i guess I'm just looking for feed back and some advice on what i could do to better the PC. thanks