My BF, a Cat 2 roadie, is wanting to give cyclocross a try. He is a strong rider and runs marathons as well, so he runs. He thinks I would enjoy it (as I like the MTB as much as my road bike) but I am a terrible runner. I know next to nothing about cyclocross.
So, how much can I expect to invest on a cyclocross bike (obviously my road bike isn't going to work, it would start to cry) and exactly how much running am I looking at here?