I just picked up a Cervelo P2 SL and it was one of the best bangs for the buck that I could find. The adjustability of it is great and the components are top notch. I picked mine up for $1650 on sale with Dura-Ace components.
I so needed this thread! I am looking for a bike to start off with and do not want to get a tri-bike persay - if only because if I don't like triathlon, then I would still have a bike for my tours, etc.