good advice from eerw,
I really like the SA aluminum trigger, and like eerw said, is adjustable for both pre and overtravel giving you (along with a new hammer and lighter hammer spring) a very crisp 1911 like trigger, just keep that in mind if you decide to put a little money into it later on. It isn't that difficult to do and the results are dramatic over a stock trigger. Of course that hammer is pretty pricey though.
good luck!