I'm down here in MD and the pumpkinseed is easy to come by. I live on the Magothy River, I throw a cast and catch them anywhere from 2-9 inches in size. I've opted to put a few smaller ones 2-3 inches, in my tank, as well as some juvenile white and yellow perch. I commonly catch the perch, pumpkinseed, and young pickerel with the net. Once I can afford to upgrade to larger tanks, I'll be bringing home the bigger ones.
I live in really close proximity, less than a mile, to the river, so I go catch grass shrimp and minnows once or twice a week to feed them, I haven't tried to get them off live food yet, but it appears to be pretty tough. Once the weather turns, I'll have to start trying to get them off live foods!