The new 2007 Specialized Dealer catalog is in at my LBS (Lee’s: Fort Collins, CO) and I got a chance to take a peak at the all new Tricross. I don’t have all the details so I will report the bits and pieces I remember:

This years Tricross will come in three versions, Sport, Comp, and Expert. (Not sure about the S-works all carbon version I have heard about?)

Frame: The Sport model very much resembles the current 2006 Sport with a Carbon fork and aluminum frame. The Comp and Expert however now includes carbon seatstays.

Components: The major change is that the Comp and Expert now have a 10-speed ultegra rear derailer with a triple crank on the front for a total of 30 gears to choose from. The comp features an array of Shimano 105, while the expert will have more ultegra goodies. The comp's Cranks are Truvativ Rouleur.

Wheels: the Comp and Expert will continue to use the same beautiful Roval Hubs that the '06 Comp offered.

Colors: The Comp is offered in “Black Sand” which resembled a matte black which looks sharp. The Sport and Expert where in matte brown and olive. I don’t remember which had which.

I am in a similar situation too. Its not a good time of year to be buying a '06 model. I cant find a 58cm Tricross anywhere. However I'm stoked on the '07. According to my dealer the '07 is avaliable for purchase now so thats what I am sold on. Good luck.