Also look at the Specialized Tricross. If you are looking at cyclocross bikes becuse you may sometimes go on unpaved pathss or bad roads, then one of those fitted with smooth tires of 28 or 32 mm wide would be the thing for you. For CX racing you would need the wider nobbies to deal with the mud. Then a second set of wheels with thin road tires would allow you to satisfy your appetite for speed.