Redline Conquest. 2007 model has disc tabs.
I have a 2004 Conquest Disc-R frame I'm building up. It has 130mm rear spacing. Disc and 130 spacing are not a good combo. Had I known how much hassle I would be in for I probably would have passed on the frame. Look for 135mm if you're thinking of building from a frame! All of the available commercial wheelsets I found in 130 has stupid low spoke counts and were very expensive. Phil Wood and Chris King do 130 disc hubs, but they ain't cheap. The most cost effective hubs I found were
these Novatecs, but still not cheap when you consider the cost of building up wheels. Thankfully I managed to score a rear wheel from a Specialized Sirrus Sport on ebay with 130 spacing and a 6 bolt disc mount. It was $44 shipped so if I have to rebuild it I will not be too sad.
Oh, and Surly, please make a disc-friendly Cross Check frame. You will make a zillion dollars. Sliding dropouts please.