Aside from the frame, have you given any though to the rest of it? Cos depending on the frame you get, it could deserve nice components. For example, if you go down the mercian route, a black sugino messenger crankset may not be so nice, but something like this would be perfect
I'd also recommend getting wheels custom built -I got miche hubs/ open pro rims built from parker international, and they came in very reasonably priced, and are a great wheelset.
Quill stems are a must on lugged steel frames imo.
God damnit, now I want to do another build!