The only thing you can do is retrofit hid's. Thats a very bad idea thoufh b/c you will blind everyone else on the road and cause dangerous driving conditions everywhere you go. Just pick up some Euro headlights and use Silverstar bulbs to see better. Or if you are dead set on brighter lights you can rewire your lights with heavier gauge wires and relays etc.
^^ Has great retrofit stuff, and you can even send your headlights to them and they will do a professional retrofit. I dont know if you can fit projectors in your stock bulbs, but they do have hid bulbs that fit in headlights that use 9004 bulbs, and with a little work you can get a good cutoff line and not be an obnoxious hazzard to other drivers. Good luck with the project.