I'm having the same problem deciding on a new frame. I'm presently riding an '84 steel touring frame which I've upgraded with STI, Ultegra/Open Race wheels, etc. I like the comfort of the tourer, but I enjoy the improved liveliness and speed with the upgrades. I'm leaning to an Airborne Ti frame, either their sport tourer/cyclecross frame (Carpe Deim, http://www.airborne.net/eready/janette/store/cdbike.asp) or the more aggressive road bike (Valkyrie) . You can choose from a wide range of forks. Then Fuji makes some very reasonable steel frames (Robaix Pro, world) which also look interesting. You can order Airborne direct or go through a bike shop. My LBS can get Fuji and Airborne frame sets.

Al