I just got a D40 (first DSLR) and I am quite excited to take photos. I am very green to photography and would love advice on the following: - Right now I have the 18-55 kit lens. Which others do you recommend? I will be using this for a variety of subjects (portraits, sports, nature, macro- pretty much anything you can think of. - Any great books that I shouldn't pass up? - What are your favorite photo editing software programs? - Anything else you recommend? I have a tripod, memory card and a Nikon D40 for Dummies book Filters? Anything? Thanks everyone!