Congrats, Stephen. Looks like a pretty good set-up, usability wise.
I bought an IBE HDx35 adapter last summer to be able to use my 2/2" lenses on my F55 and C300 and finally pulled the trigger on a Canon 17-120 in December. Having a real zoom with a useful range makes all the difference in the world with these large sensor cams. The 17-120 still isn't a 13x4.5, but it's the best there is right now in native s35 glass. I did use my 13x4.5 on my C300 for some feature pieces for the Paralympics and I could have never done them without it(not with the shot variety and speed, anyway).