I put in a 5400rpm 500gb Samsung in mine just recently. But i remember seeing a thread somewhere on the internet about boot up times/normal game load times between different hard drives. There were decreased time on certain features, and on some games. Depending on how you use your ps3 it might not warrant enough to buy a more expensive SSD over a normal HDD with more memory. I will try to find it again and link it.
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Wait whats this chirp noise my (FAT) ps3 made a strangest noice today like a electro wistle kind of sound , also GT5 has crashed twice in the last few day's.
Is it wise for me to format now before it packs up .
(EDIT) My PS3 is 80GB and its full to the max with dlc ps store games.
Some noises are normal like ticking, creaking and pops when you turn it off as this is just all the internals cooling off and returning to their normal size.
I upgraded the drive in my 40GB fat PS3 about a year ago with a 320GB 7200RPM drive with some caching features (can't for the life of me remember what they are all about).
Load times for some things dropped a little and the extra heat output (if there is any - I remember reading a lot about it before I committed to a purchase) doesn't seem to have made a difference.
Currently thinking about replacing the drive with a SSD because of the woes of Skyrim. Ebuyer seem to have some good offers on at the moment, but really, I'm loathe to buy a drive just for Skyrim. Why oh why didn't I trust my instincts and buy it for my PC? My trusty old Q6600 G0 and GTS450 OCII would have eaten the shoddy effort for breakfast.