Dreaming of the Perfect Lens

I've been lamenting the fact that I've got a hole in my lens collection. I need something that squeezes nicely between the 50mm that I try and use with some regularity, and the 17-40 that I don't use enough.

I'm dreaming about the
Canon EF 24-70mm f/2.8L USM Standard Zoom Lens



In my camera bag.........

Canon EF 50mm f1.4 USM Medium Telephoto Lens


Canon EF 70-200mm f/4L USM Telephoto Zoom Lens


Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens



Canon EF-S 10-22mm f/3.5-4.5 USM SLR Lens