It's getting easier and cheaper... The option I'm considering, a little further down the line, is a box of tricks which will convert analogue (from a video) to DV for connection to a firewire port. Then it's just down to a bit of capture software, encoding et voila, one video file. Quite easy to get firewire cards now, and my Creative Audigy has one built in which is why I'm thinking along the external box lines. The other alternative which you seem to have tried would be a dedicated card for grabbing analogue - I think Canopus do them, Matrox also do a highly rated one - have a look at http://www.pcpro.co.uk/
as I think they have it A rated in their reviews. A decent card (or the box I'm looking at) seem to come in at around the £250 mark. Simon, you're using a Dazzle capture doohickey aren't you? Is that a parallel port plug-in device? A little fuzzy on that one...Heh. Oops. Take that £250 figure and multiply it by three (at least) for the Matrox card. No wonder I'm thinking about the box!