If I had a $1000 cap on a new 1911, I would argue an STI would be the most bang for the buck. As far as fitting, finish, accuracy, reliability. You're not going to have to get it tuned to be reliable for the most part.
Sorry but I have to disagree...you don't always get what you pay for in 1911s. Some cheapys are reliable and accurate, some priceys are unreliable. A 1911 that doesn't cycle at least makes one heckuva fistload, however...
Last year there was an article out on "cheap" 1911's. The writer did one of the scariest tough tests I have ever seen. Everything from firing in mud, covered in mud, submerged in water firing, run over by a truck, dropped from some height over 10ft. It was an interesting read to say the least. Kimber, Wilson, Colt and SA were in the test as well as a Rock Island GI. The only guns that finished the T&E and could still fire after were the SA and Rock Island.
The article was in a magazine I have somewhere around here. I'll try to find it unless someone knows of a link online.
The SA loaded is one of my favorite 1911's out there. Never had a problem with mine.