whats with the PS3 NEEDS TO HAVE A/C AND A FAN POINTING AT IT 24/7 trend...
leave the **bleep**ing machine alone and play
are people that bored?
Yeah, I wonder... People seem to think the PS3 actually needs additional cooling, which I don't get. It's obviously made to work perfectly with just its built-in fans (as long as you have it in a place where air can flow freely around it), so why do people feel this need to add extra fans and other stuff? If it gets overheated and breaks, it's either because you're doing something wrong (such as keeping it locked up inside a small space), or there's something wrong with it. If so, you should get it replaced/repaired anyway. Additional cooling is not required.
I wouldn't recommend using an intercooler that you could find at a game store, it blows the hot air back into the system, which causes a more likely chance of overheating. It would also melt the parts inside, which leads to system melt-downs.
However if you have your PS3 sitting down, the only cooler I would recommend is a laptop fan. Just put it at the bottom of your PS3, and it will be cool most of the time. That should prevent your system from overheating, but the chances of your Playstation 3 overheating is very low, so I wouldn't want to waste $20 on a cooling fan.