They'll be expensive. They're actually cheaper to process than regular film but I don't have a slide scanner so it'll be a few dollars more. I really wish I had a DSLR, especially the Rebel XT. It's basically my Rebel T2 turned digital. One complaint I heard here is getting the firework as it explodes but all you have to do is listen for the launch and give it a couple seconds to get high and open the shutter. So what if you open early, the sky is dark.