edit: let me say first that I misread the subject. Thought we were talking about the X1950XT. I am off topic but who knows, someone might find it useful...not!
I have the X1950XT from Sapphire and I am having no problems at all. Good price, temp levels are good at all times. The noise is kept at low levels but I am not the right person to say whether it is silent or not since my case has a lot of fans and a "humm" sound is always there.. The huge white fan system works good and none of the 35 reviews in ebuyer mentioned overheating. As someone said earlier most of it depends on your room's temp and the ventilation of your case really...example with my window open the exhausts blow ice cold air. After closing it and about 1h later the air becomes warm. During winter it is normal that you may notice hot air blowing out the back.
as a card though it is an ace. If you haven't bought the pro I suggest you go for the 256MB XT. It is a 256bit card at the same price and a much higher performance.