Ooh, I see what you're looking for.
Yeah you know about Elite Muay Thai and I know some of their guys compete.
Again, check out Tactical Defense Academy
This gym has good MMA classes, not so sure about the boxing. There's a handful of guys that are fighters. Good equipment, too:
There is also Don Frye's group. I don't know where they train but I know some of them crosstrain at Rincon High School.
If you look around you can find a bunch of boxers and MMA/BJJ/Muay Thai guys who do private sessions or small groups.
There are also some good judo places in town.
The two places that really mix it up as far as arts go are Boxing Inc (I already shared my opinion of them) and a place called SWAT or something like that which is also overpriced.
There are a couple good BJJ schools in town but they get kinda weird if you train at other places. One is called De Brazil http://www.debraziljiujitsu.com/
and I forget the other...
There are a few other places that are connected to local competitions, but none I'd recommend.