It weighs the better part of 2lbs, and moves 54 CF/M, what is it?  Thermaltake’s Big Typhoon, as reviewed at LAN Addict.  If you think you can fit in your case without incorporating too many new blowholes, try it out!
“Yes, it is a big heatsink and requires that you have some room (OK, a lot) around your CPU socket, but the Big Typhoon’s design keeps it from have any clearance problems with components on the motherboard. Overall, I think Thermaltake did an excellent job with the Big Typhoon!”

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