Ok, so there's DDR, GDDR2, and GDDR3. Which is better? I'm guessing GDDR3, but would it be better to have more memory on a GDDR2 or better to have less using GDDR3? I'm looking at 2 cards right now (for my new computer until Vista and DX10 comes out) and they are about the same price. One has 256MB of GDDR3, and the other has 512MB of GDDR2. The 256MB one is the "Overclocked Edition", so it has higher clock speeds too. These are the cards. 512MB Card and 256MB Card. If I get the 512MB un-overclocked card, I can overclock it myself, so don't let that sway your decision.
Also, as these are ATi cards, and I've never spent much time around them, would you suggest buying an ATi made card, or a different brand? The 2 I linked were Sapphire, and they were the best deal I could find to just get me playing games until Vista and DX10. If you know of a better deal, preferrably under $105, can you post that too?
Thank you for any help!