Well that's an impressive array of lenses there David
I just have my 18-55 es kit lens with my EOS 450D, I am thinking of upgrades, so at the moment that is all I have, but I have broken a few cardinal rules with it, the rule book said you couldn't reverse it I did, it also said you can't extend it, I did :)

With a few to zoom verses prime, If and when I do upgrade, I’ll probably buy a prime, for the better and fewer elements.

It takes one tree to make a billion matchsticks, but one match to burn a billion trees