My bike list....

Hey everyone! I've been lurking for a while but I thought i would finally say hi! I've been riding an older mountain bike for many miles and its definitely time to get a new bike that fits my needs. I plan on doing more races on the triathlon side of things and completing my first ironman an aug 30th 2009. My local bike stores have been pushing me on the road bike with clip on track but since i've focused my interests and time on triathlon's i figure i best get something to fit my direct needs. I have done some research and so far narrowed my search down to these bikes...

 Cervelo p2c SL with ultegra 

Felt B12

 Kuota K Factor SL

 I've read some reviews and they all seem to be in the same price range. Based on your experience how would you rate them, and why? I know a lot has to do with fit which is another reason why I'm concerned most bike shops around me don't carry many tri bikes. Any help is appreciated!

 Thanks!