I'm about to make another purchase for my camera and would like to hear from others before hand. I shoot with: Nikon D300 Nikon D40(backup) Lenses: (all F/2.8) 17-55mm 70-200mm I mostly do concert photography, but am getting into portraits/weddings. I did my first wedding as backup and had a blast. I need lots of things: lights, flash, lenses. I'm working for my next purchase which is probably going to be the SB800/900, Fisheye, or lighting. Any recommendations etc.