I've got a bunch from Sledgehammer rapid last year on one of our trips at 4200 cfs. It was an evening run, we were at that rapid probably 7:00-7:30 pm, so the lighting is so-so, but it was the 19th of June, one of the longest days of the year.
I have the original files around here some where, but you can get the idea of what I'm talking about by looking at the lower resolutions on my webshots album, over 100 pics of Sledge there: Royal Gorge-Slegehammer Rapid pictures, photos, and videos, from kayaking on webshots
I can ID most of the boaters in the pics, the others I can find out from fellow boaters.
I've been hitting the Gorge 2-4 times a week lately. If it ever stops raining and the sun comes out, I'll take the camera and try to capture some quality shots.