Best way to set this up?

[Firestrider]

I was thinking about using an old 22" LCD monitor as a TV display in my room along with my monitor at my desk. The sound for my "TV" and "Desk PC" will come from my desk speakers/sub. The TV cable will go from the wall jack to TV tuner and I need a long (10') DVI cable from the "TV" to video card.

Will I be able to watch TV and use my PC at the same time with 2 channels of audio with this setup?

Also what TV Tuner card would you recommend that has a PCIe interface and remote?