Actually, those shots were just using manual exposure set on F5.6 and I experimented with 2 and 3 second exposures which most SLR's will do without a remote, I think. I also put it on the lowest ISO setting as I did not want to 'blow out' the fireworks with that long of exposure. Some of my shots did blow out, which is why I shortened the shutter speed to 2 seconds on some, but I was not getting quite the effect I wanted there. Keith later told me I should have tried stopping down the aperture instead of shortening the shutter speed, so next time I want to try F8 or f11 and the 3 second exposure. You might play around with some night shots with your camera on tripod and manual exposure and see how long of exposures you can do and what you get. I'll ask Keith, too, as he will know what your camera can do. Post a shot if you experiment and get something fun.
When I find the time, I want to play around with lighting with a flash light and long exposure like Patrick did on his "Moon, Car, and Stars" picture.