I got my Thermaltake TMG AT1 videocard cooler in, here are my install pics. I didn't want the Arctic Cooler blowing hot air right back underneath my hard drives: So I got the TMG AT1 cooler instead: The original ATI cooler intact and then off: The TMG AT1 installed on videocard: Now, inside the mac pro: You'll notice that I had to run the fan wire up to the optical bay so I could tap into the power adpaters up there. The molex power adapter for the fan won't fit onto the card itself. Now this presents a problem because the Mac Pro side panel won't fit flush with that wire there. If I knew anything about rewiring I could slip the wire up through a hole underneath, then reinstall the molex connector. If someone else gets this card and has any ideas please let me know. Thanks. Oh, and I forgot to take temp measurements before and after, sorry. The fan is really quiet, and when playing games the fan never spins up or anything, it stays as silent as a mouse.