Ceton Quad Tuner (PCI-E)
~$199Ceton Quad Tuner (USB)
~$199SiliconDust HDHomeRun PRIME Triple Tuner (Ethernet)
~$219SiliconDust HDHomeRun PRIME 6CC Six Tuners (Needs two cablecards) (Ethernet)
~$420Hauppauge WinTV-DCR-2650 Dual Tuner (USB)
Edit: Be warned though, sometimes very difficult to get your TV service provider to give you a CableCard. It is mandated by the FCC that cable companies must provide a cablecard for third party cable devices. However, it is an uncommon request by 99% of TV subscribers, so you may go around in circles looking for a sales person or a tech that knows what a cablecard even is. I spent an hour and a half trying to get frontier to send out a cablecard to me before they told me to call back tomorrow when the lines weren't as busy.
The next morning I called in and spent an additional 20 minutes getting it ordered. I was then called back several hours later saying "A tech is coming out for the fios and TV installation". I then explained to the lady, I already had Fios service and just wanted to add a cablecard to my account. She knew what it was and placed the order. About an hour later a tech came by with the cablecard and wrote down the serial number. He needed a few other numbers on the ceton device in order to get the cablecard paired and activated.
I would recommend BEFORE the tech comes out (If they send one out, I know comcast allows self installation in my area) that you read through all the documentation on how to install all the drivers and utilities. And where to find HostID and a couple other numbers needed for activation.Edited by Imrac - 4/13/12 at 12:45pm