I have a stock 9800 Pro and feel like trying to make a better hsf for it. I have at my disposal my stock 2.4B heatsink and a stock XP 2100 heatsink. Which one would be the better way to go? The P4 heatsink is massive and weighs a lot but looks like it would displace heat better. So what do you guys/gals recommend, and no I'm not going to buy a Artic Cooler or anything else, if this doesn't work then I'll go back to what I had.