As we all know, heat is one of the biggest enemies of electronic components. Hopefully you haven't seen this temperature warning message. If you're worried about ps3 temperatures why not try liquid cooling?
Dragonpower posted these pics of a liquid cooled PlayStation 3, we are waiting for further information. It also looks that two additional cooling fans have been added. Here is the temperature report:
Work still in progress... undone... temperatures around 32C under heavy load... almost dead silent...
That is around 12 C (20 F) cooler than the ps3 in this post. That's quite an improvement!
Hopefully we hear from Dragonpower on this setup.
[Source: Sony PS3 Modding - Homebrew, Upgrades, Mods, and Hacks]