difference between 120 and 250gb ps3 slim

[builder22]

any other difference apart from the hdd size ?
I have a 500gb in my old style ps3 I intend to use

i take it the hdd spec is the same in the slim as the original ? 5400rpm notebook size?
it's not some low heat generating hard drive or anything they use now ?

 

[builder22]

so the 120 and 250gb slims run cooler than the old ones, but the newer ones will be even better ?

I might not be able to wait that long, my ps3 is on its last legs I think!