Can any external hard drive work for the dvr? I was looking at the 1 TB range that cost in the $70s area.

Is 1 TB good for DVRs? I think my dvr can hold 50 hrs of HD video, not sure how much that is in memory but I'd like 2 or 3 times more than that.

Also when you hook up the external drive, will you have to go into your DVR's menu and find your storage etc... to access stuff you've recorded in the external hd or can you access it the same was as if you had recorded it in your dvr (by pushing the DVR button twice)?