For discussion of the issues faced when building a model or layout - how to replicate wood, what glues to use, exactly how much weathering can a Gnat take, a good source of detailing accessories - you get the picture, I'm sure.
This is probably one of those questions that everyone (but me) knows the answer to, but what did you use for the coupler pins? Are they just formed up from wire, or are they something you can get off-the-shelf?