From what I understand, its not hot at all. My card actually seems to run cooler than most others out there. I hear a lot of people playing the same games as me and running around 91-95 all the time in em. Yet I am sitting here running around 71-80 in the same games.
The only application that has ever managed to heat me up to 91 was ATI Tool and from what I can tell, it does everyone else too. However, if I turn on my fans to high it cools back down to 84 or so.
You really shouldnt need a cooler for this system unless you plan to be doing a lot of gaming on your lap. If that is the case you would be blocking the fans plug heating up your legs
These cards can go up to 100c without problems so I understand.
Edit : Forgot to add ...
For the CPU I am usually around 35-39c. With encoding or something it gets around 47-55c.