The first thing you need to do is get the hardware necessary to pull them. Some are better than others. Those I've seen run anywhere from $40 to $600...the most expensive ones obviously intended for professional use. (The one I got a while back stunk. It would pull either the audio or video, but not both...even though there was an option to pull them as one. Pulling them seperately and trying to combine them didn't end up being much better. I wish I could remember the name so I could alert you to NOT get it. It was an inexpensive one. So, I guess you get what you pay for.) I'd see what others have used successfully and not be in a really big hurry. Once you get the hardware and install the software that goes with it, they're pretty self-explanatory...each with a variety of options for playing with effects and stuff as well as straight pulls.
Ann