Hi Everyone. I'm considering purchasing a flash and I'm having a bit of trouble deciding which to buy. First, I probably won't use it *too* often and don't want to spend over $100. This eliminates most iTTL flashes. (I have a D50) I noticed Adorama has a "moron" flash that practically has no manual control but is iTTL. Is learning how to use a more manual flash that hard? Does it take long to figure out what settings to use? Does it bother you having to change the settings all the time? Anyhow, I was looking at this flash and the well loved Vivitar 285HV or the Nikon SB-24. Any help appreciated!