So I just got me a Canon XSi. I am not a professional nor trying to be. I spend a lot of time hiking and outdoors. I want to take better pictures than I am now with my point and shoot. I've been doing some research and finding this stuff is way over my head right now. How bout a little help? What do I need to really get started taking some great outdoor photos? I'm not looking to spend a fortune at the moment. But I would like to upgrade the lens without draining my bank account. Maybe add some accessories if I have $ left over. Thanks for the help guys.