Have:
Uvex FP 3.0 helmet, size 57-61cm. It didn't fit me quite right, so it hasn't seen much use.
Easton EA70 stem. 120mm, +/- 6 deg, 31.8mm clamp
Shimano 105 10-speed rear derailleur. RD5700A. Long cage. Pretty much brand new. Took it off of a new bike.
Want:
Starting a new build soon, so lots. Force or Ultegra components (double, 170mm arms and a compact crank), 40cm bars, Look pedals, or whatever else you might have.