When I bought my N80, I purchased a cheap zoom to go with it. At this point, I'd like to add a few lenses to my bag of tricks. What focal lengths do you find most important? I'd prefer to stick to prime lenses for sharpness. But it seems that its costly to have a wideangle lens, 20mm, a 50mm normal lens, a macro 60mm, and an 85 or 105 or 135 for portraiture. Anyone have any ideas? I don't have the $ to afford any of these lenses, let alone all of them. What is a guy to do?