What SirSnook said, but I would make a few modifications. I would take a 4 foot PVC and cut one end in an angle- makes it easier to drive into the sand. I use a 9-12 foot surf rod with 12-15 mono. #12 mono cast a little easier for distance but is more apt to breaking while casting heavier heavier sinkers. I use 3 foot, 25-30 mono leader and a 4/0 off set/circle hook. Depending on the wind and surf conditions, I use anywhere from 1-3 ounce sinker. I prefer to use frozen/fresh mullet over sardines simply because sardines tend to become mooshy when thawed out or get old, unless you know how to hook'em. Mullet is a a bit tougher and stays on the hook better. I cut the mullet in about 1" slices, bone and all (don't filet it). Cast and place rod in PVC holder. I like using a baitrunner spinning reel but any type of spinner will do. The above described rig is what I use for bluefish- I use a completely different rig for Pompano
And like Sirsnook said, a 2nd rod is good to have so you can throw a spoon while waiting to get hit on the cut bait. Actually, I prefer casting plugs/spoons in the surf over using cut bait. I just think it's more fun.
I prefer the last diagram when using shrimp or sand fleas. The first 2 diagrams when using mullet, sardines or squid.