I own my 722 and it is out of warranty, I will be leasing a 922 when available so I want to deactivate the 722 and use as a home entertainment device without paying any fees. I want to load it up with as many movies as possible, what is the largest hard drive that I can put in it? I've replaced Hd's in PC's and notebooks, is this any more difficult? does anyone have a link for a step by step procedure? and also a link for a suitable HD? thanks for any help.