You don't see many pictures from OCS, so here's a couple for all of you who are so curious about what its all like (although, this still won't tell you much).
Class Drill Instructor Gunnery Sergeant Hanson United States Marine Corps
http://www.news.navy.mil/view_single.asp?id=10608
Visiting the Class Chief
http://www.news.navy.mil/view_single.asp?id=10599
Class Drill Instructor Gunnery Sergeant Hanson United States Marine Corps
http://www.news.navy.mil/view_single.asp?id=10608
Visiting the Class Chief
http://www.news.navy.mil/view_single.asp?id=10599