As far as attire for the tour, I would say casual. Most of the tour takers are flown there non-rev, so they are required to dress nicely since they are non-revving, which is the policy of Delta and DCI. But since you are just driving I would play it safe with casual. I was there today and took a little tour bymyself, which was nice. I got a chance to not be rushed around. I guess since I'm starting next Thursday, i can look all i want. Oh wait till you see the CRJ sim, Ohh wee, it looks really sweet. I saw it for the first time today. I can't wait to get in that thing. It's not a level "d", but close enough!