which is a better deal?
 

i'm trying to decide which way to go and am hoping that i can get some help. background: have been riding for three seasons now on a felt s32 and a borrowed road bike. i want to get into group riding and racing if i feel qualified. anyway, here are my options:

08 jamis xenith comp - slightly used from friend for $1500
09 jamis xenith comp - new (bb30 and tapered head tube are new additions for 09) for 1900
09 cannondale caad9 5 - new for 1400

i've ridden them all and the al caad isn't as harsh as i had figured it to be relative to the carbon xenith. so, if you had to make a choice, which would you choose?

thanks in advance!

08 Zenith, assuming the size is good for you.