1/16 or 1/32 oz jig head with either small piece of shrimp/prawn or smallest plastic grub you can find(probably 1" or 2")

As for rigging, I find that having your weight on the end of the line provides a great deal more sensitivity as well as greater ability to set the hook on these nibblers. For one, having a bell, bank, bass, or pencil lead sinker on the end of your leader stretches the mono taut and thus all and any strikes are more easily felt. For the jigs, you could either lower them straight down or use a slip float.

When fishing whatever you use, I personally recommend that you not jerk the rod around since it tends to scare the fish away. Don't worry, they'll be back as long as the bait is still hanging on the hook. You'd be surprised how small a bait they'll go for as long as it has plenty of smell to it. The technique I find the most exciting to use is casting toward one of the pilings, letting the weight sink a little, then closing the bail and let the bait "swing" through the water until is directly below me. Usually the bigger fish will hit the bait on the drop and having a tight line helps in bite detection.

As for tackle, I would say that sticking to hooks no larger than size 2 will be fine. Just make sure that if you're going to use the smaller hooks like size 6 or 8, have needlenose pliers handy for unhooking fish that have swallowed the hook which in most cases is almost always. To compensate for this you might want to try using a long shanked hook such as O' Shaughnessy. An Aberdeen would probably work well too.