I am selling my Sibex Cossack frame with matching Ti fork and FSA cross headset. It is a 56cm frame and was raced lightly for one year. It is in great condition. Geometry and specs are here: http://www.sibexsports.com/frames_cx.htm
I will sell the frame/fork/headset for $1000, or would possibly sell it built with a Sram Rival group for $1600.
Email me for pictures.