I've scanned through some of the posts here but I'm afraid some of it is over my head!! We have decided on a Canon EOS Rebel T4i, but aren't sure which lens to purchase with it. Looks like the most common options are 18-135mm and the 18-55mm. We want something versatile as we're a) beginners, and b) planning on using it for a wide variety of pictures (inside/outside/landscapes), and lots of baby portraits and video once he arrives. Thoughts?

We are planning on taking some lessons from a pro once we get the camera, so we'll have that covered.