Lone Star,
Unless you buy the Colt Repro for twice as much, the
Springfield GI45 is as close as you're going to come to a M1911A1 and still get a forged frame and slide. I feel the forged frame and slide are important on a 1911. Others hold a different opinion.
Swap out the mainspring housing and toss in a new mainspring along with a spring cap, and you get rid of the "retarded" ILS that causes so many people to wet their pants. Three small parts, and the mechanical aptitude to remove a pin with a drift punch and Bob's your uncle. Alternatively, you can just leave the ILS unlocked. It has no history of magically locking itself like other lock guns do.
The trigger will slick up with use, or if you are in a hurry, dress it up on a whetstone. 10 minutes later, you will have a sweet trigger. Springfields do have a looser slide to frame fit than some other 1911s. Accuracy does not come from slide to frame fit though, reliability does. Accuracy is the result of barrel to slide fit, as well as the ability to return to exactly the same spot cycle after cycle.
The GI45 does have a two piece barrel. This goes unnoticed by many people. The chamber is actually press fitted into the barrel. On a worn parkerized barrel, you can often discern the joint. I've never seen or heard of one separating, and I've followed these pistols since they were first produced in 2003. The two piece Springfield barrel is no Nowlin or Kart barrel, but it is as accurate as a GI barrel.
I own two GI45s, a parkerized I bought new, and a stainless I bought used. I replaced the recoil springs on each one at about 800 rounds. I have enough lead downrange through these pistols to make a fair judgement call. I think they come, or used to come with weak recoil springs. Everything else is good.
If you want one like a M1911A1, here is a
brief article on my attempt. With a few small parts swapped out, you can have a reasonable facsimile of a M1911A1.
At one time Kimber was the gun to get. They pretty much revitalized the 1911 game, forcing other makers to produce an upscale 1911 that people wanted or lose market share. A lot has changed since then. I will not speak badly about Kimber, as I have no personal experiences with their product. I've never owned one, and I suspect I never will. No need. Folks do not seem to be as happy with Kimbers as they once were though.
Finally, I have to mention......Colt makes a pretty darned good 1911 too. They kinda know their way around the 1911 blueprint in Hartford. You might want to cast an eye their way too.