I'm fairly new to the world of photography. Been doing it for the past 2 months or so. I own the Canon T3i (and have been fairly pleased with it so far). Current glass complement: Kit 18-55, 28mm/1.8 prime, 50mm/1.4 prime. I love those 2 primes, but they're not exactly the most versatile in terms of "walk-around" lenses. I feel like i need something that covers a bit more of a telephoto range (>100mm). I figure something like the Canon EF 28-135 would give me both ends of the range for when I don't want to carry around the primes (28 being wide enough for general purposes, and really 100+ being versatile enough for portraits, wildlife (not in a professional way), hiking, street photography etc. So: 1) Is that the way to go? Does this make sense? 2) Is that 28-135 a smart choice? 3) Are there other suggestions/alternatives i should consider? Let's assume that the L price point is not for me (i'm not ok spending more than, say $750 for this walkaround lens).