So far i've had a weird problem popping up from time to time on my desktop. Right when I boot up, one of the fans in my case start sounding almost like a truck engine or something, probably due to a bad balance or something. I think i've narrowed the noise down to the CPU heatsink, and I don't want that sucker to fail, so I think I might just replace it before the problem gets worse. Question I have though is, what's a good, cheap heatsink to use? I really have no idea about what's "good" for a fan, but I really don't need much. I'm running on an Athlong XP 1600 which is at stock speed. With the fan I have in there(random noname compusa brand) now i don't go above 47ish C with max load, so i'm fine with that. I'm just looking for something really cheap (sub 20 bucks hopefully) that can keep my temps ok and be as quiet as possible. Anyone have some good suggestions as to what brands are good for this pricerange? Or what retailers to look into? (looking into newegg right now). Any info would be great, thanks.