"ATI's Radeon 9600 Pro - Thanks to a 0.13-micron manufacturing process it requires very little cooling"
you can look at the pic of the fan it's using.
the HSF on the card looks exactly like the one that I had on my Radeon 64mb VIVO (original radeon).
I have the original radeon running on my parents computer, i removed the stock fan, and suspended a panaflo L1A blowing on it at 5V (as per the poor man's zalman bracket MikeC did in one of his articles).
I'm pretty sure doing that would make the 9600pro/non-pro to be far quieter then any stock cooling on the FX5600.
oh, and from reading i've gathered comparing the 9600 series and the FX5600, the 9600 series is a lot cooler running then the 5600.