Well you might want to consider some completes before building on up. I definitely understand to draw to building your own frame, but you typically get on the bike in less time for less money with a complete.
Notables for you Price range: Biachi Pista, Kilo TT, Schwinn Madison, GT Gutterball, Redline 925.
I'd look at the Schwinn First, its a good price and a little later when you have the money you can upgrade to a beefier wheelset.