Gee I thought I was pretty clear for a 4:44am post.
Source box is a Time Warner Scientific Atlanta 8300HD, with Svideo and spdif going to a Sony DA3000ES (older all digital receiver), which goes to an older still Hitachi 31" crt. Maybe a good six months before the display is replaced with something big and HDMI, and I revise my video card etc to suit, maybe, big maybe cablecard video cards will be a practical reality by then.
For now goals are;
Media player feeding the receiver with top quality signal, currently S video and Spdif audio, later upgrading video to digital depending on flavor the display likes.
PVR, I have zero over the air antenna signal, so I need a cable digital tuner for the unencrypted channels so I can use both tuners in the Cable DVR and still get Bones off NBC or whatever.
Long term storage on the Cable DVR is a waste, plus any problems and all the programs are lost. I want to be able to dump programs from the Cable DVR to my HTPC with 2TB of mirrored storage. Input could be HDMI, S video, and/or spdif from the Cable box for now, later on the digital input becomes a requirement.
First one is easy, add a Spdif bracket and motherboard cable. Next two I am flexible on, which means solutions need to be cost conscious, or I wait until I am ready for the HDMI requirement. If a good cheap video input card without spdif input is the best I can find for now, I can live with that until I go HDMI.
Thanks for all suggestions, I will be following links etc, and HTPC is running Win7.