RE: Which 1911 style 45ACP?
I recently bought a new Springfield GI .45. I must say that I knew that the trigger pull and sights were not going to be conducive to good target shooting before I bought this particlular gun, but these are truly my only complaints with this one. The old fashioned look of this one just tugged at my heartstrings, so I had to have it. I have an older Gold Cup that has a nicer trigger and better sights, but I can still shoot the GI .45 almost as well as the Gold Cup, provided I am careful on the trigger (and that I hang on tight when it goes off.)
If you are looking for a target pistol, you may want to spend the extra money up front for good sights and a great trigger pull, because reworking these will cost you at least as much as buying these features in the first place. I would not hesitate to buy another Springfield, but if I ever get another .45 I would probably opt for the S&W 1911SC with the scandium frame. A friend let me shoot his and I put 4 out of 5 rounds in the same ragged hole with it, better than I can normally shoot with any of my own toys. The 1911SC is also very lightweight, nice for carry, not so nice for recoil management.