In reply to Indy:
I have an old CAAD 5 frame. In its time state of the art and very lovely, corners like it's on rails, just as fun to ride as my modern cervelo made of carbon fibre.
Groupsets, well I've tried some super light weight stuff, lovely silver campag stuff and a few bits of SRAM. All good and bad in different ways and while shimano isn't the lightest, trendiest or most glam I find it a step up in terms of simple operation and performance over anything else. Japanese engineering for you.
Try both bikes, buy the one that makes you feel happiest and fits you best.
Cheers and have lots of fun choosing
Toby