Wire Whole Squid Rig
If the squid are small (4 inches or less), I just hook them through the tip of the body with a plain hook or even a bucktail. Just give the fish a chance to eat it.
For larger squid, that I want to use whole and target larger fish, I use a wire rig. I made up half a dozen over the winter and keep them in the tackle box in a ziplock bag. Instead of wrapping the squid like Mike, I use about 6 inches of cable, crimp a hook at one end, use a few beads keep half of a float away from the hook, a bead in front of the float to keep it from going over the loop and then crimp a loop in the front.
Use a bait needle to thread the rig up through the body. The float will keep the body from sliding down the rig and help keep the bait up from the bottom a little. The beads will keep the hook so that it is just sticking out of the body.
Attach the whole rig to a leader off of a three way. You can put a spin and glow rig on the leader or just use a plain piece of mono.