I am about to pick up the Canon T1i and it comes with the kit with the 18-55 lens. However, I have heard that these aren't the greatest of lenses. The main purpose for purchasing this camera is that I travel a lot. What is the best all around lens that I can get for a decent price? Not looking to invest in any professional style lenses. I'm getting the camera/kit for $550. Thanks for any insight and help!