Hi, I currently have a Canon EOS Digital Rebel XTi dSLR (that's a mouth full). I have the 18-55mm kit lens and have recently been thinking about upgrading to the new Canon 18-200mm IS lens and selling the kit lens. So, I was doing some research on the lens and stumbled across some pretty good deals on the Canon 40d with the 28-135mm IS lens. Now I'm torn on if I should just sell the entire XTi and pick up a 40d. (After selling the XTi, I think I could get the 40d for not much more than the cost of the 18-200mm lens would have been). Are the benefits of the 40d over the XTi worth it? How is the 28-135mm as a walk around/travel lens. I am still a photography beginner, but have recently gotten into much more, would the 40d be over kill for me? Thanks for any input, and if you have any idea for a different direction that might be better for me, let me know!