So you just went to go look at the Caad10 but didn't actually ride it??
I rode a Caad9-5 last season with 105s and easton ea90 sl wheels. Just tipped the scale at 18lbs. Got the bike for $1300. Was a solid bike, really stiff and compliant. I really wanted to keep it as a crit bike, but i was forced to sell it in order to get the 2011 team bike.
I've seen brand new frames go for $350ish on ebay.
my initial ebay search pulled this up:
http://cgi.ebay.com/2010-Cannondale-...item230f7e17c6
I would buy a nice frame rather than the neuvation/fuji and complete bikes are cheaper. Do you really need a powertap at this moment??
Just my .02 cents
Do what ever your heart tell you to do.