Wabi just launched their new bike, which comes with rack + fender mounts, wide tire clearance, and great geometry for commuting. Reynolds 725 is A+ steel tubing as well (although the frame isn't lugged).

If you're going to commit to just one bike and use it for commuting, at least give yourself the option to add fenders and racks. The new Wabi even has front lowrider mounts, which is the first I've seen on a fixed gear/ss frame of good quality. Plus, the new fork is dope.

EDIT: And it's less than $1k