Dixieangler does!
For crappie, all you need is a 5wt and some small streamer patterns like a Clouser Minnow.
But here's a good link to more info on crappie fly fishing. Click on "Features", "Panfish". Scroll down to the bottom of Rick's current article and click on "Archive of Panfish". Scroll down some more and you'll see "Rick's Favorite Crappie Flies" (1&2).
http://www.flyanglersonline.com/