A good dual pivot with decent pads gives plenty of stopping power for my purposes for good road conditions. You also would need a fork with tabs to mount the brake.

Disc brakes are really nice of wet or muddy conditions, though. The sand a salt they use in the winter here can scour through a rim faster than you would guess. Post a pic of your Crosscheck, mander. I am considering picking up either that or a Soma cross frame this spring.