The Carolina rig suggestions are good. Another good rig is to tie a 3-way swivel on your main line, with a sinker on one end and the hook on the other (it's called a White River Rig). Redworms are always pretty good baits, esp. after a big rain. Don't use a drag chain! You've got to really know what you're doing to use them; otherwise that's a good way to get yourself sunk. When you float, keep an eye out for trees, rocks etc. behind you; don't get lulled to sleep by the beauty of the river...I did that once and almost paid the price: OTOH, my buddies won't let me run the boat anymore:D