Thanks Greg. Kansas sounded awesome, although they don't put on much of a stage show. Here are links to galleries of each band. As you will see, Kansas played befor dark, so no light show. Foreigner palyed around dusk and Styx came on just after sunset, so the lights played more of a role.
I used a 70-200 f2.8. My exif tells me I was at 140 mm. For some reason, my ISO data is stripped. I would guess that I was at H0.3, which is the step above 3200 on my D300.
I shot a concert Friday night, but I'm drooling over this shot. Looks like you had great light to work with. Excellent capture, love the comp with the light coming out of his chest/heart.