Most helpful ever!
My problem is really the wide end, for I don't care much about reach. I mainly shoot people and landscapes and find myself often increasing ISO, and it's being hard to find some fast WA lens for APS-C. I considered getting the 10-22, but it's not really fast for indoor use -- I'd have to push the ISO maybe a little too high for my 60D -- and would mean sticking to APS-C for a good while. I also thought about the 16-35, and although I could use some more reach for avoiding changing lenses, it's my plan B in case I don't go FF. (I guess the 17-40 L is just too slow for indoor use on a 60D.)
The thing is, I want a good, not-expensive-like-hell lens for better indoor, low-light shots. The 24-105 L sounds just perfect (I'm no pro), but its not as wide as I wish on my crop camera.
Probably FF is really the way to go, for indoor WA is just so damn difficult on crop.
Thank you very much for replying!
As an alternative to the 10-22 Canon, maybe you should give a try to the Tokina 11-16 f2.8, lots of people claim it's the best wide zoom for crop sensors.