I don't know what it costs to bundle cable with everything else. I do know it's still a lot of money, and the prices you'll be quoted are introductory costs that eventually go up. I suppose you could just keep canceling and re-upping, although there's also a startup fee.
The last piece of my TV setup is in place -- I have hooked a Hauppaage USB TV receiver to my PC, which now acts as a PVR, and I can access live and recorded TV, internet video, and Netflix all through the same interface (Microsoft Media Center, which is pretty good). At this point I'm not missing cable at all.