Pinnacle may have many bad reviews on amazon, but the people who use it and
have no problems rarley tend to make note, and pinnacle do sell many of
these items.
Have you considered the canopus cards, www.canopus.com or even an external
convertor box, again canopus make these, along with miglia. Have a look here
for some reviews on them. http://www.simplydv.co.uk/reviews.html
at the bottom of the page, you may also find lots of useful info in the
forums.
Graham