The local collage I have been shooting for redid their indoor venue this summer. All new floor, raised the ceiling and all new lights. That is the problem. The lights used to be a mixture of lighting types. The ceiling was raised by taking out the girder system and put white ceiling tiles dispersed between a large number of 8 bulb fluorescent fixtures. It's not the dungeon that it used to be for light but now I am having a problem. All my shots now have more digital noise, even at 800 ISO with my 30D than with the old mix of light types. None of my settings or equipment have changed. The only thing I can attribute it to is being pure fluorescent lightning. Any suggestions. This one has me stumped. I would consider sport strobes, except there is absolutely no where to hang them.