City & Track Bikes
Jamis Sonik
Stiff. Fast. Light. Choose 3.
Stiff
On a track, stiffness leads to efficiency. The harder you push, the more your eyes water from the wind whipping through them. So, you push harder, and the frame responds by transferring all that energy into even more speed. Check out that rear triangle. It is super short to make the rear end tight (and stiff as possible).
Light
Jamis picked carefully when selecting each part on the Sonik. Nothing was given up in stiffness and durability. Yet, the bike is still silly light. The complete bike is under 16 lbs. with pedals.
Fast
Going fast in a straight line is fine and all, but your bike needs to handle the corners and the steep angles that you are facing at both the new Boulder Track and the Olympic Track in Colorado Springs. The drag of the rear tire is pretty well eliminated with the wheel being so close to the seat tube. Fast frame + fast parts + fast rider = fast bike.
The 2009 Jamis Sonik should make the rest of your short list look silly.
And the price is less than $1800.