Everything Mark said is correct about the breakout boxes. I use the AJA Kona 3 and it’s pretty sweet. I monitor on an SD Sony Trinitron and am waiting on the day I can rock an HD monitor, but that card will handle the upgrade when it comes.
Mark did have 1 incorrect fact though.
I just wanted to add that I have the HM700 and it shoots to HCSD cards in native FCP format. Just drag and drop right into the timeline and it’s ready to edit. No converting necessary! 🙂