Hopefully this will help a little. I have a 60D as well, and have owned the 50 1.8, the 50 1.4 and the 17-55 2.8. Recently I have found the new 40mm pancake lens to suit my uses for the "50mm" range better than those. My photography skills are not good enough to utilize the extremely narrow DOF @ 1.4 aperture, so most pictures ended up in the 2+ aperture range as a maximum. Since many of my uses for this are for indoor shots of the kids, trips to the museum, etc. f/2.8 seems to work fairly well with the 60D. Good luck on your decision!