Here are descriptions of three lakes, all right together:
Eagle Lake, Chotard Lake, and Abermarle Lake. They all sit on the Mississippi/Louisiana line and would be reccommended that you hold a license for both states since if you cross the imaginary line, they will tag you with a ticket and send you packing. The link above has topo maps of all three lakes. good luck.
As to Sardis, I live in Lafayette county/Oxford and there is no backwaters to Sardis Res. They have the thing durn near dried up. I guess they sent all the water to the delta for farmers to flood their fields for the high dollar duck leases. Ain't no birds there anyway. As to Enid Lake, a few birds, but definately not worth a trip from georgia.