Now that I have totaled my Trek 5500 in a accident over the weekend, I am in the market for a new bike. The frame I will get properly fitted of course, but my question is what should I spend on the components. I am a decent cyclist, have qualified and raced at the Worlds a few times (Duathlon), and have been riding a tri / modified Trek 5500 (full Dura Ace 9sp) for several years. I will be going to a tri specific bike with my next purchase. My question is, what would be the best use of my hard earned cash for the components. Is full Dura Ace worth the extra bucks over Ultegra, what about cranks, and areo bars (one piece?) In addition, I have a Renn Disc & plan on purchasing a Hed Alps for the front. Just curious on the groups thoughts on how you would build a bike balancing performance with cost.

Thanks