Extreme air cooling for your overclocked CPU.
Thermalright Ultra Extreme 120 Rev. C - LGA 1366 complete with bolt through kit (Rev. B), fan (Included fan was never used) and holder. ($30).
Thermalright Ultra Extreme 120 - LGA 775. ($20)
Both are complete in box with original documentation, support brackets, hardware, and case stickers etc, everything you need to get up and running.