Okay, you cant use newegg (they dont ship to us people up in the cold white north) and shipping from my neck of the outback would cost the $30. If you live in the big city, there are a few ok bricks and mortar shops around. Lakeshore and Kipling comes to mind, but it's been a few years since I was out your way.
The thermalright 90 would be in your price range. you would have to buy a cheap fan seperately. It is a huge chunk of metal though, and might be scary to install.
Scythe makes some heatpipe units that may fit your budget.
BTW, the article that I linked to did show a stock 939 hsf being used in an am2 socket. It's not that you cant do it but rather that AMD's stock fans are not that great. The retention springs are crap, so reusing one is not recomended
If you do use it temporarily, make sure you give it a good clean, all over, esp the fins on the heatsink.