Is there any room inbetween the reciever and the self above it? maybe you could get a few computer coolers.

Something like this

http://www.xoxide.com/slotcooler.html

I actually had a similar setup as you, I had a 5 channel amp with shelf maybe 1 inch above it. I got 3 of those fans, and wired them in parallel and then got a small DC power supply from Frys (3.5a i think). it worked pretty good.


Just one option.