First off thanks for the replies.
To answer the last question first; I have expanded basic on a digital box and don't subscribe to on demand. I hardly purchase pay per view. If I do I can just get it through the actual cable box instead of the card. So yes! you do loose those features.
Something popped into my mind while responding. Can you specify what antenna input is used on the TV for the cable card? I guess I can look it up in the manual for the tv. ( I already downloaded it)
As for the DVD Recorder, Yes I would like it to hang off the Tivo box. Is it as easy as it seems; or is there a trick to it?
Thank you for your replies!