[Answered] Use of Peltier in the Ps3?
If you use the peltier in the cooler of the ps3, maybe (need to test yet) the moisture caused by peltier don't be a problem since the fan expel the air.
If dont work, you can use the cold air of peltier only and blow inside the ps3 (like a air conditioned). Its can be used with that system pc fan tunnel too to better the job.
i'm waiting my peltier to coming to make the demo 
cya
To tell the true, and not to discourage you, I've thought myself a long time ago to peltier inside PS3 and what came out is the following:
Moisture IS a problem, there is the need to use at least neoprene lining and saratoga something to avoid the bigger part of it, not difficult but not so user friendly trick AND it leaves a big of mess around...
Heatsink IS a problem, ther is the need to add the peltier power rating to the amount of heat to dissipate and this will lead the heatsink to heaten up more INSIDE the PS3 leading to more heat INSIDE the whole system, the EMI shield is used to cool down the RAM, mosfets of the processors, AND the interface driver of the BD reader, if the whole system heaten up more it could be not possible for the EMI shield to sink enough heat to cool down those components leading to a system failure.
The last point says there is the need to use an external heatsink like the one of a watercooling system able to drive away from the inside the most of the heat without leaving it roaming around.
The peltier itself is about 4mm thick ant this leads to the need to use something different to fit it in the shell and to sandwich between processors and heatsinks, original screws and clamps are not suited to let use the original system, at least there is the need to replace the screws taking care to not wreck anything thightening..
It was at the end an exciting experiment but with a lot of mess to do inside and outside, besides the peltier itself, for this reason I've quit the idea hijacking my mind to one standalone air conditioner that keeps fresh the room in which I play and even my mind instead of only the PS3...

and I'm enjoying it, but I'm sure to have quit too soon and I wish you could be more lucky with your experiment...
Happy modding however, I'm sure there could be something I didn't think at that could simplify the situation making it more user friendly....