Hey Andy, Sorry for the delay! I just saw your post this afternoon.
I shoot all of my pictures in raw format (best everything) and use strictly all manual settings. I know this doesn\'t help you any, but I HATE automatic settings on cameras. Does your camera have any manual settings? If so, do yourself a favor and learn how to use them.
You probably won\'t notice any difference in printing quality until you go to 8x10 and up. If you think you will ever want to go above 8x10, definately use your best resolution available. You shouldn\'t use SQ2 unless you never want to print it. And SQ1 only if you are going to print 4x6.
For shows, I generally try not to use flash unless there are musicians in the dark. Then I\'ll use a flash and balance it with existing light, so as to not overpower the shot. Can you set the ISO on your camera? If you can, def. set it as high as it will go for shows.
Hope this helps you out a little and happy shooting!!!!