Well, if the fan is not turning you can try to revive it by lubing it with some 3-in-1 oil. But that's only a temp. fix. I do recommend the Zalman cooler, I bought mine at NewEgg but it's not for sale there any more. You can get it at SVC, though. Here's a link:
LINKY
That's an excellent price, too. When I bought mine from NewEgg it was over twice that.