Why didn't you buy a Gigabyte 6600GT Turbo Edition(GV-NX66T128VP)? It would be the logical choice, since it comes with a heatpipe from the factory. I know you already bought something, but it seems as not everyone is aware of the existence of this card. It's not as available as the normal version, but i think a stock heatpipe is the better solution.
honestly. i dont ever leave anything stock. i feel wrong if i dont change somthing with everything in my computer.
all fans in psu's are always changed out. holes always cut in my cases. cables always wrapped for clenliness, case fans replaced and holes expanded to accept 120mm fans, etc etc.
i guess im just a modder at heart
also i had to buy a card at bestbuy, i had a $50 gift card from christmas for their, and also.. if the x800 XL's come out in the next few weeks i wanted the option to return my card to get it. and id rather not pay to ship it back to an online retailer.