A couple of specific frame questions ....
The frame has bosses for downtube shifters. It looks like this at the moment:
Presumably, once I break off the black, plastic bits, there will be metal points underneath where the shifters would fit on, as in the pictures in
this review. Am I correct in thinking I need to buy something like
these to adapt them for use with my STI levers?
In the same review, he also mentions needing a front brake cable hanger. Something like
this?
I think the little metal bit hanging from the seatpost clamp in the next picture is the rear brake cable hanger.
I've done a lot of measuring and lining up the new frame against my old frame, and I'm really happy with my choice so far. The forks on the Surly are longer, the head tube is shorter, and taken together, this means (if I keep the same spacer/stem setup) the bars will be within a few millimetres of the height they are on my Trek. The BB on the Surly is 10mm higher, so I can either compensate for this by adding another spacer or flipping the stem, which would have the added benefit of decreasing the effective top tube slightly. The seat tube angle is slightly steeper on the Surly, so I can decrease the ETT further by using a seatpost with less setback, without drastically altering my position relative to the pedals. I'm very, very pleased.
I've decided I'm going to start out with the CR720 brakes that Hicky is using, and see how I get on with them. They only need to stop about 60kg in total (me, plus bike) and they're not expensive, so it won't be a huge loss if I decide to upgrade later once I've decided what I really want. (They're the brakes that Surly put on the bike when they do a complete build.) I'm also going to consider the bar-top levers that VamP mentioned because they might be a good option for better braking in busy areas where I want to be sat up rather than on the drops.
Here's a gratuitous picture of the frame. Probably not to everyone's taste, but I love the way the decals look like they've been painted on with Tippex!