Surly Long Haul Trucker, too.

Additionally, Jamis makes a few steel production bikes, the Quest (MSRP $1375) and the Satellite (MSRP $775). The Quest is a bit over your price limit, but is probably worth the extra for the better drivetrain.

My girlfriend has an older Bianchi Veloce, which she completely loves, but of which they've criminally ceased production. The new Eros (MSRP $1300) gets you Campy Mirage, the 2007 incarnation of which I've heard very good things about (10-speed, as good as last-gen Veloce).

If you're industrious, I've regularly seen a ton of steel Bianchi road frames on eBay in the last couple of years. You could build one up from scratch, if you feel so inclined.