Need Help... Buying a Tri Bike
go and test ride the bikes in your price range that you have your eye on.. when you find the one that fits you perfect go for it!
You might want to check out Trek's TTX models and Scott's Plasma models. They both should fall in you price range if you can find them with Ultegra components...Trek, as you know since you previously owned one, has been around forever and their Time Trial bikes have been proven time and time again and as recently as the latest Tour de France. After test riding the TTX 9.9, I found that it felt very fast but it also seemed that you would be able to stay in the saddle for those long hauls.
Scott's new Plasmas have a very tri-specific geometry that is fast, light, and very aero; of course it may not be the most comfortable thing for you with the extreme seat angle and very dropped position.
And remember, a lot of shops are about to throw some bikes on sale to make room for next year's models!
Planet-X Pro Stealth Carbon is the only option especially in that price range because you can get a brand new unit with top end deep rim wheels and still have money left over to spend! You could probably even get a power meter with the bike if you were willing to spend just a bit more or go without the high end wheels.
http://www.zedsport.com/pages/triathlon/stealth.htm

Also consider going on Ebay and getting your frame and components separately and building the bike with the components you want to have and the look you want it to have. I have built both my road bike and my tri bike this way. I was able to build both up both bikes with Dura ace components and good aluminum frame/carbon fork bike frame for under $1,000 apiece (That price also includes a set of aero deep dish carbon race wheels). Also you can learn a lot about bikes by doing it this way. I had no bike knowledge when I started biking 2 years ago, but know I have a lot of knowledge and do all the maintenance on my bikes myself.





I got into Triathlons last summer. I've completed 3 Olympic, 1 ironman 70.3, & Alcatraz. I'm officially hooked. I completed all the events using a Trek 1500 road bike. It got me through. But I think it's time to up grade. Here are my specifics.
5'8" 170
I have a budget of about $3,000.
I've read a lot on Tri bikes...carbon vs. alum, Cervelo, Kuota, Felt, & QR. I have on idea which direction to go.
Any Thought would be appreciated