Okay... first of all... get something ASAP or you will fry your vid card, guaranteed! It's doing a death knell...
What do I run on my production machine? A
Sytrin KuFormula VF1 Plus, works great, but it's kinda esoteric for most ppl's taste... however, if you're a geek, you might like it too...
Here's the
cooler that recently dethroned my VF1 Plus -- the reigning King!
If you want something different -- kind of an old idea, that's been resurrected -- check out the
Vantec IceBerg 6. You'll be the only guy that owns one, so instant bragging rights, you know? You can tell everyone how it dropped your case temps by 6º C...
Otherwise, you can always be like everyone else and buy a Zalman... I guess...