I'm an old player who has run a lot of characters both martial and magic, and I've encountered many players over the years who were caught up in the whole "My wizard does more damage than your fighter." mind set. The thing to remember is if you're running intelligent or cunning enemies correctly they recognize the danger of the wizard and go after them first, followed by the healer types. The fighter's job wasn't so much to deal out massive damage than it was to look big and intimidating, preventing the enemy from getting to the caster by any means.
