I've got a 20D. Have two, actually. Love 'em. Holding out for the 5dIII sometime in the future.
I've got a gig shooting some girls gymnastics team pics -- no action, just posing 8-12 girls in a group with strobes. I was going to use my Tokina Ultrawide, but after doing some research I understand the wide angles don't handle groups well.
I want an "L" lens that I can use today with the 20D, as well as the 5DIII when it does come out -- yes, APS to Full frame and all.
What lens would you suggest for me to get these team pics, yet still be able to have a solid lens on future full-frame cameras?