Thanks to all who answered my questions regarding lights. I'll probably get a Surefire with an offset mount soon. Now I want to know what sort of rigs you guys run. Rig = belts, holsters, magazine carriers, chest rigs, etc. The course requirements state that I need to be able to carry 4 AR-15 magazines on my person, in addition to a pistol with spare mags. I currently own a Crossbreed belt (1.5" width) and a Milt Sparks Summer Special 2 for a 1911. I also have a XDM 9 mm, complete with a paddle holster and a Crossbreed supertuck for conceal carry.
I would really like to avoid dropping $300+ on a tactical belt and chest rig, since I won't use it for anything other than another carbine class due to the lack of the ability to conceal such a rig. Likewise, I may use 1-2 magazine carriers on my belt for 3 gun, but that's about it. If you guys think I should spend the money for my own benefit, then I'm willing to listen. I still think it'll be something that will wind up collecting dust in my closet. I can practice mag changes and just about everything else off of my current belt.
One more thing, can someone explain MOLLE to me? Anything special I need to know beyond this Wikipedia article: http://en.wikipedia.org/wiki/MOLLE_%28military%29