So I'm considering buying a flash that would attach to the body of my Elan. Color me confused, as I see prices ranging from 20$ on ebay to 500$ or so somewhere else. Then there are compatibility issues, I guess not all flashes will work on every camera? It would be nice to get something that would also work on my Rebel XT, though that's not a necessity. I just need light, really, something that's good to use on the fly, for quick shooting. So enlighten me TPF. Post links for reading and whatnot, recommend me some of your favorite flashes, all that fun stuff. Thanks.