No the Svideo port on your video card is likely an output port, so you can send your computer image out to a TV. You need some sort of input, be it composite or Svideo or whatever. Most of the all in wonder cards have this. As well as the Nvidia personal cinema cards. Some others might also have them, look for them saying they support video in.
Before I say anything else though, this LCD you speak of, its a flat screen PC monitor, not a TV right? I assumed, but I hate doing that.
Not sure how else you could hookit up without a video input. There may be some kind of adaptor for it. I think I have seen ones with VGA output, but not sure if there are any DVI output ones. Not sure which your monitos supports either.