Before we go any further, I'm a cheap skate...I'm switching over from satellite. I plan to subscribe to Comcast Digital Basic ($65/mo), HD ($5/mo) and DVR ($10/mo). I have four TV sets...I don't want to pay the extra $22/mo for 3 more decoder boxes. Can I get away w/ buying 2 digital Comcast boxes and a DCT6200 on eBay and hooking up myself. If I bought a Motorola DCT6412 (HD/DVR box), would I even have to pay the $15/mo for HD and DVR?