360/PS3 Comparisons

[Ashe]

I understand that you can use any 2.5 inch SATA HDD for your PS3 (even swapping the 5400 RPM drive for a personal 7200 RPM drive to decrease load times) whereas you have to buy special made drives for the 360. In theory, is it possible to basically sit on a couple of spare HDDs to swap in and out of your PS3 for more space if for some reason you need more? Are you able to drop this into your computer and copy certain files like movies or games onto it (or backup save files and other content from the PS3 to your computer) and then drop it back in without complication? And what I'm most curious about, what would happen if you attempted to use a Solid State Drive? Would it work, and if so, would it drastically increase performance for load times?

I've recently been tossing around the idea of getting one of these (I can't afford both) and have been deciding between them (this is if I somehow manage to get the money - and then get it through my wife). There's a lot of different points I don't mind discussing about that if people were interested, but first I'm hoping to address these questions since they aren't well covered in the research I've done so far.