the redline is light, and lots of people like theirs. it's probably more ideal for a race. the lower end ones have an aluminum fork i think, which can mean a harsh ride, so i'd consider it less than ideal for a commuter or tourer.
the surly is versatile. it can be ss, has rack and fender mounts, no disc tabs though. it's steel which is heavier but lots of people (myself included) believe that it rides smoother and is more suitable for an everyday bike. lots of people also race their crosschecks (replacing the steel fork with a carbon one cuts the weight a bit) and do quite well with them.
i don't think you'll go wrong with either, but for a bike that's primarily an all rounder and secondarily a race bike, i'd go with the crosscheck.
Last edited by dirtyphotons; 11-09-07 at 08:51 AM.