Hey thanks everyone for your help. It seems that what I'm hearing about the 1911 in CQB is that it is a good gun if you can find/make it reliable, but the magazine capacity is definitely a negative.
Still though, I do not understand why these elite agencies would switch to the 1911 unless it did offer some sort of distinct advantage, but perhaps I am wrong to suppose that the choosing of the gun relies solely in the gun characteristics, perhaps it could be American tradition? Maybe the sons of America want to use the same pistol their great grandfathers used in defense of America - or perhaps that is only an additional plus?
I'm still open to more input, 1911 diehards and plastic-double stack diehards alike. The reason I'm so interested is what I've been hearing lately, also from what I hear from my Corpsman buddy in Iraq. The .45 seems to be on demand. Keep shootin' guys.