HeHemmm,
I just happen to be auctioning my Vlab Motion board, toccata sound board and Movieshop 4.3 editing software as a group on ebay. It has SVHS and composite input and output on the Vlab Motion board, the toccata is 16 bit audio and the software is pretty straightforward. With a 3000 of 4000T with a display card and a large scsi drive you won't need any thing else....no time base corrector as the vlm manages to stabilize the incoming video itself. I would suggest you have a'040 or better.
This isn't going to provide you with world class state of the art professional video but it does home tape editing just fine.
If interested...
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3403627707&ssPageName=ADME:L:DS:US:8Sincerely,
--Wil