Static discharge to the level you describe from the belt sounds downright weird.
Things I would check would be arcing on one of your coil packs (inspect each of them carefully for signs of arcing, and even spray them with water when the engine is running), including your new wires. The crank sensor or cam sensor grounding (crack in the plastic casing - although very unlikely as there isn't enough voltage), and definitely all grounds.
If you just changed the plugs and wires, my hunch is that you will find a problem there.
1998 Accent Sport