I finally gave in and ordered a 721 so I could move my 501 upstairs. I love my 501 but wish it had a little more space and wouldn't mind being able to record 2 things at once so I got the 721. It was either that or the 508 the 721 a little more than I wanted to spend but I gave in and got it anyway. I also ordered a Dish Pro Quad LNB this and running the second cable are all I need to hook it up correct? I'm hoping I like this as much as my 501 and am happy with the purchase of it.