Not bad, but I'd make some minor changes. I am 6'1" 200 lbs and I WAS kind of out of shape, prior to getting my own all-purpose 'cross bike up and running in the winter.

Here's my story: I found a ti frame online, and the owner -- a pro who was selling because he was getting a sponsor's bike -- and I were uncannily the same dimensions. Inseam and arm length as well as height. I went for Ultegra triple, cassette, and hubs. I also definitely recommend the bar end shifters over the downtube ones. (Actually I think Shimano only make bar end shifters in Dura-Ace). My rear cassette is 12-28, which with the triple gets up all the steepest hills in Vancouver. (Okay, not the mountains but that's another story.) What I like about Ultegra is the quality and the stiffness. It's not DA light but it is tough enough, for sure.

I even bought a Midge handlebar, like you are considering, but I found it disappointing, so I went to a FSA ergonomic drop bar, which I love. The Midge requires a steeper angle on the stem.

Now the tricky part was getting an uncut fork. (Most steerers are cut too low for the older-than-30 rider.) I have an Independent Fabrication steel fork, which of course is professional quality, but I want an uncut steerer, so I wasn't bent over too much. I just bought a carbon CX fork online (Ebay to the rescue again). I'll install it, and then see where I want it cut. Like someone else pointed out, when you buy your bike, don't let them cut the steerer.

Also, I had a B17 but then plumped for a Swift, which is ti and fantastic. It's considerably lighter than the B17 although it does cost a fair bit more. It's just as comfy but it's a lot lighter. (I have a ti fetish anyhow, with the ti frame, custom Moots stem, and Moots seatpost.)

Finally, I went with the UltraGatorskins, and they are very good. I like Schwalbe tires, normally, like on my touring bike and recumbent, and on my wife's bike, but they are heavy. Oh yeah and the cross levers make a difference in traffic: quickly within reach.

Anyhow, I just thought I'd mention these things because I went through the same process as you just in the last 6-7 months, and we're approx. the same age and height/weight etc. And I wanted -- like you -- an CX all-purpose bike, though not for CX itself. (I.e., commuting, bombing around town, over all kinds of surfaces etc.) The bike is a pleasure.