Summary: I recommend the Zalman 9500A coolers for these.
Pros: These Chips are Fast. I bought 2 of them from another vendor about a year ago, when they were $1000.00 ea.. I still have them in My s2915 Tyan quad sli workstation which doubles as a gaming rig. Runs every Game Max Settings.
Cons: At the current price its like stealing them.