I'm using a "Dazzle" (www.dazzle.com of course~!) It's USB and I can hook up a camcorder or VCR for inputs to the PC, and output to TV or my monitor. It captures the video, I edit using Ulead Media Studio Pro
(an excellent product) and it's a breeze.
Spendy though. I paid $250 for the Dazzle.
My new GeForce card has video in, but I haven't tried to use it yet. Might be sellin the Dazzle....! J