I'm in the same boat. I've got a retail pack 3000+ which overheats. AMD sending out coolers not up to the job.
First step for me (and the cheapest) is to fit a couple of case fans. One at the front blowing into the case and one at the back blowing out. This should give a flow of cooler air over the CPU.
Also make sure that your case has plenty of space around it. If its jammed into a small space in a computer desk there will be nowhere for the hot air to go. I had to move mine out from the desk into a wider space.
My pc is hot but running so I'm guessing your air flow problems are worse than mine.