This thread is full of win.
Seriously though, I was in the same boat a while ago, wanted to build from scratch. I found these forums, lurked for while, came to my senses and bout a full bike. One that is close to what I want and price, then I customize it to perfection. Like adding bullhorns, time trial levers, new tires, stem and chain. Now I have my bicycle, not yours. It's also not very cost effective to buy part by part,
P.S. I don't think people here are trying to be rude. You see, these people could tell you all the parts to get, then what brand/make/model/size. Then they would not hear the end of the questions, and perhaps you misread someones instructions and ****ed up your bike. Or cause you to crash, or worse, you end up hurting some else. Then we wouldn't hear the end of your hate.
tl;dr
It's the interwebs , get use to it.