I am really fascinated about DSLR cameras. It's like I am venturing into this entirely new complex field that I know nothing about -- so complex that members here are recommending books to read. So, my question is, just how difficult is it to learn how to use a DSLR? When I put that camera into MANUAL mode I am going to have to worry about ISO settings which I know nothing about. Then there are dozens upon dozens of lenses available for the cameras, but just looking at the numbers on them, I still don't quite know their advantages over others. Found a really good blurb here about the basics of DSLRs. If I take the time to read a book or two (and hopefully it won't be as long as War and Peace) should I be able to pick up on using these cameras effectively? Is it really difficult to understand? You would think this is the question I should have asked first before even looking at cameras. Thanks, guys, for all your help.