[quote name='doubledown']I've read that a 7200rpm drive runs HOTTER in a PS3. Although, as others have said, you will not gain any performance from 7200 vs 5400 at this point.[/QUOTE]
This was true 3-4 years ago. Not sure when it changed, but newer tests show WD Black 7200 running cooler than WD Blue 5400. I know this is counter-intuitive, but of you look even at old tests from 2008-2009, the Black drive suck more power than any other drive at _full_ load, and draws less than other drives at idle and when streaming video. As long as the PS3 doesn't use max load on it, which ironically, it can't... The newer Black drives are cooler, and you get up to 10% performance gain ( which in all honesty, you won't notice at all).