Well... I think for $1000 and/or a little higher, you can have a few guns that will be a great choice.
There are the firearms that I've listed, although check into Kimber to see if you'd like to invest your money into a Kimber. Of course, imo dont spend over $1000 for a Kimber. Others may disagree, but I dont find the value in a MIM filled Kimber in the $1000+ range. There are better options out there.
For combat sights, there are two options. There are the fixed sights such as the Novak ski jump type sights and the Heine style sights. There are also the combat sights that was used in the GI style 1911s, such as the sights that come with the Colt Government, SA Milspec and SA GI model.
Do you prefer a GI type gun with GI sights, short thumb safety and no frills? Or do you want a gun that comes with Novaks sights, ext thumb safeties, beavertail grip safeties...?
There are value to some of those bells and whistles. I love 1911, and I have 1911s of both variants.
You'll honestly have to find what "mods/options" you'll require for your personal needs.
For example, for myself I require my 1911s to have:
1) dehorned
2) beavertail
3) Good quality sights
4) ext thumb safety
5) Front strap checkering
6) Good slide to frame fit. Not too tight but not a rattletrap. This is strictly preference of course.
Of course, reliability, durability, and quality is a given. There are some bells and whistles I can do without, such as nightsights, ext. magwell, skeleton hammer, skeleton trigger, FLGR's, serrated top of the slide, french borders etc...
Maybe for right now a good working stock GI gun out of the box that is reliable would be a great start. Check with
www.1911forum.com for a LOT of information. I post on there too.
I started with a Colt Government, and I'm glad I did. It really made me appreciate the modifications/options that I require on a 1911 because I found out for myself what I wanted on a 1911 instead of what was piled on when I bought it. I've figured out what I like, and thats what matters most to me.
For a GI style gun, I'd go for a Colt Government. If you're worried about the gun firing when dropped, get a Series 80.
For a bells and whistles gun, Go for the Springfield TRP or a slightly used Les Baer Thunder Ranch (although the Les Baers are the tightest guns available, they are made with the best quality parts. Its worth it and VERY VERY accurate). A basic Kimber Custom II is a good starting pistol into the 1911 world, and I've been very pleased with the Kimber's accuracy potential.
Also, most production 1911s have great accuracy. Even the milspec SA and Colt Government. I'd honestly think that they have the potential to outshoot a Glock 21, but in my hands I suck at shooting Glocks anyways
Best thing to do is to stop by the shop, handle EVERYTHING and ANYTHING that catches your eye. Do your research and figure out what means the most to you in a 1911. The options are almost endless, so research well.
If you have any more questions feel free to PM me. 1911Tuner is the resident 1911 junkie on this forum. He's very knowledgeable when it comes to the 1911 platform.
Good luck and happy shopping!