I suppose it depends on the people involved in the relationship. My ex kind of insisted on paying for everything; sometimes I would FORCE him to let me buy him a coffee or something. I actually really hate having people buy stuff for me, a date or not. Of course it made sense considering that he had a job and I didn't, but still. I suppose it's kind of a strange thing to "complain" about!

I'd say in general expect to split things about 50-50. Just let him know that you want to keep things casual...