This is like Deja-vu. I have a cabinet similar to Sonofnorway, purchased the variable dc power supply from Radio Shack like Chadnliz's friend, and use the exact fan pictured in the link by Mijknarf. The only thing I can add is whether you blow in our pull out, you are going to have about 5 times the dust you normally do so clean things with a soft brush attachment on a small vac regularly.
adding a fan to an enclosed cabinet
Hello. I recently bought a cabinet to house my stereo equipment and sit my TV on top of it. I never had any real issues before with my amp getting too hot when I had it sitting on a rack that was not enclosed. Both my amp (Bryston) and HD cable box (Scientific Atlantic 8300?) get way too hot. What is the best solution for this other than leaving the cabinet doors open? My one thought was to add an exhaust fan (the type that would go on a computer case) to the back of the cabinet. Would I want to add an intake fan to circulate the air even more? The only ventilation that it has now is 3 1.5" wide openings running the height of the cabinet. Thanks!