I'm new to the DSLR world... but I purchased the Canon Rebel xsi a few months ago and I'm still playing with it. I need another lens because the lens it came with (18-55) really only allows me to take pictures of things close up. I need to get something where I can zoom in more. What are your suggestions?? As for price... i don't want to spend an arm and leg.. but I do want good picture quality.... any thoughts???