The fan on my BFG 7900gs is noisy, and the cooling is not great. I'm looking at replacing the fan on this. I've done quite a bit of building systems and mods, but I've never replaced a gpu cooler. I've heard some horror stories of people destroying their cards when removing/replacing the cooling. Can anyone offer advice on the steps needed to make sure I don't destroy the card? Also, what are some reasonably price cooling solutions that will work for this card?