If you can handle warmwater, there are VERY MANY guides on Lake of the Ozarks, and white bass and crappie fishing is good now. Few if any of the guides will really know much about fly fishing, but they can put you in the right spots.

I suggest Jack's Guide Service. I fished for gar with him in May and did well, and also got a few largemouth and spotted bass. http://fishinglakeoftheozarks.com/index.htm

(Note: Jack is my cousin, so this is definitely a biased suggestion.)