The DV footage will never be any better than it already is on tape. When you digitize DV over FW into FCP, all you're really doing is making copy of the file as it already exists on the tape. If you digitize it over SDI or component to a higher bandwidth codec, you're actually recompressing it to the new codec.
Arnie
Post production is
not an afterthought!
http://www.arniepix.com/