I have a 54 cm Cervelo Dual frameset from 2007 [I believe this is the last year for this model]; it is silver/black/white. Low kms and in excellent condition.

IIRC, the Dual was basically replaced by the Soloist. The frameset looks the same and the seatpost is the same dual-position type. It comes with the Wolf TT fork and an FSA integrated headset.

Email me for pics, if you are interested.