You mean the one where we have to listen to the blow hard that "Gunny" turned into once he decided to spend more $$$ on equipment than anyone else in recent history... and thus is an expert?
FYI.. It was less than a year ago that Gunny first blew into FM without a clue, asking all the same questions in threads and PMs etc...
I know.. I answered a parcel of them.
He is now, after spending 30K in under a year, merely regurgitating 10 months of assimilated crap, and reposting the same Dog picture so often he can't even keep track of the fact in a single thread!
Anyway.. IMHO.. yes the 135mm is "sharper" ... but is it so much that it will blow away your 70-200mm f/2.8?
With a 4Mp sensor will it be noticeable?
Will a slight improvement is overall sharpness outweigh the advantages of a flexible zoom range?
These are the questions that you need to ponder.
After thinking about it some i think i've come to the conclusion that i should just keep my 70-200. Mainly for the first two points you make. There is a reason i bought the 70-200...it is sharp, and man is it sharp!
www.questphotos.com/beard.jpg
(6mp image)
The one thing i noticed while going through some vollyball pictures last night is that i'm worring less about how "nice" my photos look, rather then how GOOD they look.
The 1D kind of does that, it enables me to capture stuff i couldnt dream of capturing (at least this consitantly) with my 300D. But 4mp, noise etc, really hurts the niceness of these photos.
Such as the image i took above. It was fairly creative, and it looks amazingly nice...but i'd take my dirty looking low mp Spike shot any day over that!
I'll get it someday, but i think being impatient would be a mistake.

If anything, keep the 70-200 f/2.8 and buy the 135 f/2... for the reason CDS stated and you agreed with. It wouldn't be fun come next football season when you decide you need the 70-200 f/2.8 again, and didn't have it. You can always hold on to it until next season, and if you find you're not using it then, then sell it if that's what seems right... I don't think that lens will lose value anytime soon.
