Here's some logic for you...
I wanted a cheap touring/commuter... something to ride to work and around around town and not worry about. So I found an '03 Specialized Sequoia on CL for a good price. It's the perfect bike because it has a weird suspension seatpost, uncomfortable handlebar, and crappy adjustable stem.
What does this have to do with the CAAD10?
The stock Cannondale seatpost, handlebar, and stem are going on the used commuter, and I have an excuse... er... REASON to upgrade the CAAD. As an added bonus, the stock calipers on the commuter are worn out deathtraps. So it gets the CAAD10's Tektros. CAAD10 gets 105's.
Pics in a week or so.