Hey, this is a first for me, asking about a Canon Lens. I've always loved Canon, so forget any brand war with this post, it's just that I tied up a pile of money in Nikon over the years, so when it was time to go dSLR, it had to be Nikon. Right? Good. I now have a good friend who is getting really serious about her photography. For reasons not now germane, she went Canon rather than Nikon. The body she bought, although I do not know which one, is of a vintage of within the last year or so - meaning all current Canon lenses should be good to go on this rig. She is presently looking for a lens, a great all-purpose zoom, that just might be a Christmas present. Sooooooooooo, how 'bout all you Canon folk out there just fill me up with recommendations for this perfect lens, the ultimate walking around zoom. Have at it, and I thank you...so does she.