^ No that doesn't make sense. I installed a SATA 7200 2.5" hard disk on my PS3 about a month ago. Everything's great, there was no problems at all.
I think you should go with the 7200 rpm. This is the hard disk that I installed on my PS3
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=190299261320&ssPageName=STRK:MEWNX:IT
This seller accepts paypal.

It is better to die on one's feet
then live on one's knees







