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>received a 4gb slim
>want to upgrade the memory to 250g or 1tb
>don't want to pay the ridiculous amount m$ want's for one.
>'ve heard that you can use a laptop hardrive, but there is a chance m$ will ban over modifying hardware.
....

Basically I have done some research, dug through useless website one after another. I'm just wondering if anyone here has a 3rd party HDD for their slim 360 or the fat one.

Thanks.