Steelheader 69 and Brian have good ideas. The GL2 that Brian speaks of is a decent plunking rod. Its has a fast taper so the tip is sensitive enough to transmit sandshrimp bites and its got serious bone. Plus the rod doubles up as a heavy driftfishing rod for salmon and nates. The downside is when plunking short-water using plugs. The rod is so sensitive the plug vibrations will literally shake the entire rod in the holder, rendering bells useless.

The 'ol Fenwicks that SH69 speaks of are awesome plunking rods too, especially when using plugs. These glass rods transmit vibrations so well that you can tell if your plug's fouled with debris just by checking how the rod tip is bouncing. The downside is a lack of backbone. If you're running just bait, make sure the pyramid is on a slider for a better hookset.

My pick would be an Ugly Stick 8 1/2 to 10 foot, rated to 25 lb line. It has the main attributes of both rods in one, which are a decent backbone and a sensitive fiberglass tip. Plus it's way cheaper; $59 versus $89 and $180, respectively. Make sure you bring some electrical tape and tape the two rod pieces together, though. Ugly sticks are notorious for coming apart while casting.