OK, here's my latest Fixed/SS bike. I couldn't figure out whether I wanted a road fixed gear, or a trail-riding SS, so I compromised.

Specs:
Arraya rims (touring bike)
Sovos flip/flop hub
16 tooth fixed, 18 tooth free
Shimano 600 Crankset
45 tooth Salas inner ring, 42 tooth Shimano 600 outer ring
KMC track chain, with half-link
Profile stem and bullhorn bars
bar-end levers
Dia-Compe rear caliper
cheap cantilevers front
cheap aftermarket fork
Specialized Nimbus 700x38 tires
Brooks saddle
Kalloy seatpost