To start it off, keep it around $500-600. That basically limits it to a 70-200mm f/4L or a 70-300mm IS.
The 70-200 is an L which makes it appealing, but I heard that the 70-300 IS is considered a hidden L lens. The longer reach makes it appealing.
So which would you recommend, and don't let it down to the L.
Some comparison shots would RULE from someone who has both.
Thanks a lot!

