Hey, I had the same question a few weeks ago. Discussion is here:
http://www.bikeforums.net/showthread...ontal-dropouts
Why do you want a track bike for your all weather bike? Do you really need to go as wide as 42? Plenty of frames will accommodate 28s, and many will handle 32s. In addition to those listed in the above thread, check out the Wabi classic, which can handle 32s.
Kilo WT will fit up to 45s. Iro Phoenix up to 38s.