Completely true, but that vid card dizzy links to is still only a 128bit card, so the first one djmind had was still better with 256mb ram. But ya try to get a 256bit card, even if it only has 128mb it will still be better.
Also now that I hear you say primary use will be gaming, I'd deffinitely get a better processor. Something with 512k or 1MB cache will perform so much better, and of course higher clock speed the better. I wouldn't go ultra cheap on the processor and mobo dude, not for a gaming machine, you'll regret it. Maybe you should just get the mobo/ram/cpu for now, then upgrade your vid card so you can game later. Then you can get some better stuff. With how fast technology moves, getting the lowest end stuff your asking for trouble. Before you even hook up your new system, your almost obsolete. 512MB ram is sufficient, later though I'd wish for another 512 stick to make it 1GB. Good luck