Hi, I'm new to the forum. I'm looking for advice on lenses. I just got an XSi for Christmas and I absolutely love it. I was planning on only getting the body and then getting a really nice lens, since I have heard that the kit lens isn't all that great. But my parents got me the XSi kit with the 18-55 mm lens, which is fine with me. I haven't had a chance to really try it outside yet, as I've either been at work or snowed in. I am only planning on getting a nicer lens this spring, since I don't really need one right now, I just want to get to know my new camera before starting some serious shooting. So basically, I photograph animals; horses, cats, dogs, and nature/landscape. I'm a very outdoorsy person and take more pictures of my horse than anything else. So I need a good lens with IS to take action shots, and also still shots. I also take portraits of people. I would love to get into macro lenses some day, but for now I'd like to stick with Zoom and Telephoto lenses. So any recommendations? Thanks in advance.