I have posted my 2007 Argon 18 Helium complete bike on EBAY, here is the link:
it is in excellent condition. I bought it before coming to law school last fall and have used it less than 20 times. Email me if you have any questions. It is a “S” or 54 cm. toptube, SRAM Force group, FSA SLK carbon crankset, Thomson seatpost and stem, Fizik Airone, Dura-Ace 10 speed hubs and cassette, Wipperman 10 speed chain, …it is loaded.