I've been looking into the eyetv products for my iMac, but haven't yet pulled the trigger because of price. I recently came across this tuner from Hauppauge. The model is WinTV-HVR-850 HD USB. It says it's compatible with xp but is there any reason it wouldn't work for my mac? Is it only the software that makes it incompatible? Is anyone else successfully using this on their mac with different software and/or drivers? Thanks in advance.