So, I finally got a PS3. I know that upgrading the HDD is possible, but how difficult is it? Can you just pop it and drop in a SATA HD, or does it have to be something specific for the PS3? I'm not sure of the PS3's "OS" is stored on the mobo, or on the HD, so would it even be feasible to pull the current 40Gb HD, image it with something like Norton Ghost and shoot that image over to a bigger one? Thoughts or experiences would be appreciated!