you want a colt specific? I kind a partial to the Remington Rands, although I have a Ithaca here right now, no colts.
I am no colt epxpert, but just picked up a nice book called the Model 1911 and model 1911a1 military and commercial pistols by Joe Poyer, ray riling books has them (he was at the gun show today), like $30, and very updated, kind of a thickened Clausen but newer.
and you know this site I am sure;
http://www.coolgunsite.com/
there is also the 1911 site,
http://forums.1911forum.com/forumdisplay.php?f=30 but I don't really like visiting them, they have a few jerks and are extremly intolernent for asking prices, values or that they "think" you might be selling, or god-forbid asking about somehting on auction. I have reservations of recommending anyone go there.
Ed