Kuota kueen-k frame, sram red group, zipp sub 9 disc in the back and a 1080 on the front. easton aerobar. Wait, I think I already spent more than your money on this dream bike. Anyway, that'll be a killer bike.
4000.. P3C dressed to the 9's. The P4 just came out, but from what I see, there is no need to go there this year. The P3 will be around for a long time and is THE standard when it comes to top of the line tri bikes.
I would consider picking one up that's lightly used. With the P4 coming out, there should be a few people who want to unload their P3's.
I would go with a P2C with a good set of race wheels. You could easily get out the door for $4k and Zipps. Plus a lot of the other bikes (Kuoto & Scott) are having sales so you can get bikes at near dealer cost. I know the last couple of times I've gone into All3Sports, they've had some serious markdowns.