NickSteel,
Good choice with the WINTVGo card! However, when you put the card in don't let any of the provided software within 10 meters of your pc - it really stinks big time! Instead, install the btwincap drivers from
http://btwincap.sourceforge.net/ . These are much better drivers for cards with that chipset. Then you need a program to capture. I've tried windvr and don't like the results personally - but give it a try yourself. My personal preference is VirtualVCR - an excellent freeware app, get it from
www.digtv.ws . This program allows you to capture to any avi codec installed on your pc and has some specific code to handle audio sync - make sure you tick 'Resample audio dynamically' in preferences although this is explained in the website help section.
Kwag quite rightly said captuing to huffyuv gives best overall quality. However, this gives you huge filesizes. I have found that using the Picvideo MJPEG on setting 18 or 19 gives excellent results when encoded using tmpeg using the PixieDust avisynth filter. The filesize savings are enormous.
If you have any quetions feel free to ask, i primarily use KDVD to encode tv captures made this way and some times the results look just like the tv broadcast. I usually fit about 4-6 hours widescreen capture to one dvd.
Jim