Surly Disk Checker?
…No it is not a new Surly model, at least as far as I know but it is a pretty cool modification to a Crosscheck. A friend of mine bent his derailleur hanger to hell during a drunken ride home (the details are fuzzy.) The choices were to either buy new frame or replacing the dropout, the choice was easy. Since the dropout needed to be replace anyway we decided to get rad and upgrade the frame to be disk compatible. Along with replacing the dropouts I also added cable stops for the disk brake, removed the cantilever studs, and removed the cable stops for the canti brakes.