George,
I lived in Lilburn in the 70's and now my son just moved there, so we will be down there occasionally. I learned to crappie fish and to troll for them on Stone Mountain Lake. It was full of crappie back then, we often caught 2 man limits of 100 in a half day. Need to check the current regs on the lake, but back then you could use up to a 10hp motor. You don't need to spend a lot of money to fish in a boat there. A used jon boat, electric motor and battery and you are good to go. I never fished from the bank, but I am sure there are places to do that. I would certainly give it try. We fished in the big lake and had to be off the water by 1PM on weekends but we usually had all we wanted by then. There was a smaller fishing lake, but I never fished it. Did too good in the main lake. Lots of mornings in the winter I was the only one on the lake.
Check it out and let us know what you find. I am considering dragging my rig from SC down there at some point.
SeaRay