So, I've found I'm a bit of a complusive tinkerer/upgrader, and the combination of that along with the Craigslist bike section has lead to a pretty serious change in my bike. Change as in the only things left from the original bike are the seatpost, stem, and the handlebars. For now - I have designs on replacing those too, just have to wait for the right deal to show up. Through selling my old stuff, I've been able to do this (reasonably) on the cheap too.
I'm especially proud of this bike, as I've found just about every component separately, and built it from the frame up myself.
Frame/Fork - 2006 Specialized S-Works M - team colors
Wheelset - American Classic hubs, wheelsmith spokes, aerohead rims
Drivetrain - Shimano Ultegra SL 6600 - shifters, derailleurs, compact crankset, cassette
Brakes - Tektro Oryx
Seatpost - Easton CT2
Saddle - FSA K-Force Carbon
Stem - Profile Design Hammer OS
Bars - Ritchey Pro Bio-Max
Interruptors - Cane Creek
Pedals - Candy SL
It weighs 19 pounds on the button as seen in the picture with pedals and a computer.
I'm going to be using this as my only bike - I've decided to sell the road bike and put the money into this bike instead. I've got my eye on a 4za python fork, and if badass pedals/stem/handlebars happen to pop up on Craigslist for super cheap I'll pick them up too. It'll be a road bike until it's time for cross, at which point I'll take the pretty Ultegra SL off and replace it with the following 9 speed setup for the fall. It's all pretty ugly/beat up, but that's sort of the point - there's no weight penalty, and I can thrash the already ugly components.
Ultegra 6500 shifters
Dura-Ace 7700 derailleurs/cassette
FSA energy 48/34 crankset/bottom bracket