The Tricross is their equivalent of my Charge or Surly's Cross-check. It looks suspiciously similar. (Well, the steel version does.)

It's their more relaxed CX-type bike, but they don't bill it as a cross bike. They advertise it as a "do-anything-except-race-maybe" bike, presumably to differentiate it from the Crux, which is a racer. There's a steel version with discs.

Since you're in the UK, try Charge's Filter line. I've got the version with Apex. It's steel, so it's a bit heavier, but it depends what you put on it. If I can get a new speed-oriented CX bike, I'm definitely putting a rack and fenders on this puppy.