Ya at eeh, & welcome to the AJA IO Cow, Peter!!!
I’m also a former Media 100i user (since v2.6.2 thru v8.2.2), who reeeeally dreaded the assumed learning curve to FCP and was new to FCP hardware!!!
I am dyslexic so manuals are not helpful (unless they have lots and lots of screenshots!!!). There are some great books out there, like THE FINAL CUT PRO 4 BIBLE, and Jerry Hoffman’s ON FINAL CUT 4, that are still relivant to FCP5.
Fortunately, i’m a good systems geek! I have no problem at all learning FCP because was able to dismiss any paradyme of the Media 100 work flow in order to avoid attempting to duplicate it in FCP, which would cause major frustration.
I also chose to go with AJA hardware by checking out all of the COW forums, reviews, professional recommedations, features, and most importantly the company’s history and product roadmap going foward.
I really enjoyed learning something new, and that made it not so daunting.
Also, if you can, avoid having to learn it on a deadline project!
You are in good company here, and I find many answers here and have yet to call the very responsive techs at AJA (my system uses both KONA 2 and the IO together with FCP Studio 5).
I’m sure that you will enjoy the AJA FCP community, using and exploring the great potential of AJA & FCP as I have, I have’nt looked back and don’t have ANY regrets!!!