[97TurboDSM]

Well I seriously need a lens for my camera (Canon 30D) and I'm considering a used 17-40L f/4. any of you canon folk have opinions, or personal experience rather, with this lens? seems like a decent lens but not sure if im gonna want something with a tad more range. this will be the only lens i pick up for a little while and just dont want to make a decision i'll regret.