I have some friends who are interested in trying out a 4.0 campaign. I don't have time to make up something from scratch, and I don't really like the adventures Wizards has made for 4.0 so far (combat after combat with no real development, story, or opportunity for roleplaying). I've heard how good the Pathfinder campaigns are and am thinking of converting one to 4.0 rules. How well do 3.5 adventures convert to 4.0 rules? Is it fairly easy or will the entire campaign have to be re-written? Has anyone already converted one of the Pathfinder campaigns to 4.0?