Wow, thanks a bunch, for the feedback and the help! Didn't think I'd get all my answers that quickly/easily. I'd been looking into tuner cards, but the more I looked, it began to seem to me like all they did was turn your PC into a television receiver, but it really can capture footage from existing televisions too? I might have to go with a USB plug-in version I've seen because I don't know if I'm tech-savvy enough to install a card (never done it before).
Weird, though. When I try to go to videodownloadx.com, all I get is this message:
Caught exception:Invalid controller specified (%C2%A0)
That ever happen to you before?