I want to purchase a Xbox 360 S 250GB Hard Drive Model 1451 but I own a Xbox 360 Core Edition which don't have to say that it's one of the oldest models, currently have a 120 HD which is running out of space, can somebody please let me know if this 250 HB will suit or can be compatible with my old fella, as far as I understand the model S refers to the Slim version so that's why I have my doubts about it, thanks in advance