[UniPol]

I am undecided on which lens to buy up to 200mm FL for my 5D MK II. I have a 17-40mmL, 50mm/1.8 II & 28-135mm IS USM at the moment, the latter lens I would like to replace (It really suits my 450D though). There doesn't seem to be a lens from 40-200mm in an "L" quality (I know Canon have 70-200mm L but which one?), perhaps some of you fellow IISpacer's may be able to recommend one, not necessarily a Canon. I just love the 17-40mm, it does everything I want to. Cheers.