I believe they have an "Anniversary edition" for this year. Otherwise there are 4 or 5 other engraved limited editions. Will try to post pics & additional info as I find it.
100th Anniversary (Only 500 made)
In 2004, there was a limited production run of 5 specially embellished 1911 with rosewood grips with S&W medallion each retailled around $1136. The 5 embellished models were:
1. "United We Stand" Production:Not listed (*Often complained about reversed "gold duck head")

2. "Long May it Wave" Production:250

3. "Land of the Free" Production:250

4. "Stars and Bars" Production: Not listed
5. "Mexican Eagle" Production:500
Wish you luck if you desire the "Stars & Bars" or "Mexican Eagle". I have only been able to find reference to them in the S&W Standard Catalog.
Another one I have seen is the "MIA Rolling Thunder," which I believe only 500 were made.
There is also another Limited Edition a member here had posted awhile back. Pictured below, which is according to owner's contact with S&W is 1 of 231.
Have seen reference to a limited edition "NRA 1911," not quite sure as to production amount. The serial number on the below gun would put production to around late 2004 to 2005.