He wasnt specific about which SRAM group, If he can get red I might agree, otherwise Dura Ace is the top of the line Shimano with one click gears, Also Six13 was a higher end frame in the Cannondale line when they made it than the CAAD9 although I like both frames pretty well. You do get "New" with the CAAD 9 vs Two year old but still like new with the Six13. Both will be old frames in 2011 because they stopped making Six13 and the CAAD9 goes out with the introduction of the new CAAD10. I would go with the bike with the best components myself. Which SRAM group did he offer? SRAM RED> Dura Ace but Dura Ace> Ultegra, SRAM Force, SRAM Rival IMO.

Oh and 105? No way