Right now I have an Olympus SP-55OUZ, which is definitely a step above your average point and shoot, but I've been developing a much stronger interest in photography lately, and want a camera that has full manual control, plus the ability to change lenses, etc. Basically something I will be able to use as I my skill progress from noobish, to advanced. Heh. What are good cameras to look at? (Within a reasonable budget range for a college student).