I really want a Clear QAM tuner for my HTPC

I've been running the cable DVR (Digital Video Recorder) for about a month now and I love it.  Being able to record Mythbusters, Dr Who and Torchwood makes it worth the $14 a month.  Damn, $14 a month works out to $168 a year, for that amount I should be able to add a tuner to my HTPC that can pick up these stations.

The question is are my favorite stations broadcast in Clear QAM?  Clear QAM is the format that television is broadcast over cable, it is different than the way television is broadcast over the air.  Clear QAM will not allow you to pick up encrypted channels like pay channels so I need to determine if my favorites are encrypted or not.

I've been reading about Clear QAM tuners for months and the absolute best/easiest solutions seams to be  Silicon Dust's HDHomeRun dual tuner network device.  The HDHomeRun has two tuners, each can be ATSC (over the air HD) or Clear QAM.  The device costs $169 just about everywhere, funny that price seems familiar.

If I determine that most of the channels I want are available unencrypted over cable I think I will buy the HDHomeRun and return the cable box.  I'll let you know what I decide.