This is going to be very broad, but perhaps it will point you in the right direction. If you are fishing a jig, stick with "baitfish" colors...........pearls, blues, silvers, etc. If you are using live bait, the best thing you need is a good map and good electronics. It could honestly take years before you learn all the little places that will stack the crappies up. With a good map, it gives you a starting point, and with the good electronics, you can see what's going on below you.
For a crappie rig, there are two setups that I go with. The first is a slip float rig. I use these year around. Start with a twine bobber stop with a small bead. You can add a larger bead, but it's honestly not necessary. Slide your float up the line, then add a split shot. Finally, add the hook. You can adjust the float to fish at what depth you want to fish.
The second is the "bottom-bouncing" rig. It consists of two hooks and a bell sinker. It's pretty fairly simple, but it can become very complex with all the little gadgets they have to try to "improve" the way it's done. Your best bet is to get some snelled hooks. Tie one hook around 3 ft. up the line. Go down 18 inches, and tie the other. Make sure that they "stand" out and will not get tangled with one another. Then, tie on your bell sinker. Always go with the lightest bell sinker for the situation. In heavier currents and higher wind situations, use a heavier weight. On the days where the current isn't so bad and there is no wind, go with a lighter one.
If you are wanting to shoot the docks with a jig, go with a 1/32 oz. jighead and the soft plastic crappie lures in baitfish colors.
Hope this helps. I know that you were wanting lake specific information, but these will honestly work on any lake around the country.
