Have had the card for about 2 weeks. Fan ramps up occasionally and is rather loud. A half shrouded fan is loud by nature but this almost sounds like a bearing noise. I checked it with a piece of tygon as a stethescope and the noise appears to be coming from the exhaust and not from the fan hub.
For others with the 7600GT - is this card really loud? (sorry, but "really loud" is about as quantitative as I can get without any measuring equipment).