Scorpion Control - Part Two

Since late spring I've found 4 scorpions in and around the basement of our house - two dead and two alive so I've decided to move forward with my earlier suggestions on scorpion control (7/26/07). First, all the cracks that could allow entry into the house are getting caulked. Second, I'm spreading aromatic cedar chips around the basement to repel the scorpions, especially around the air vents. And last, the posse of spiders that make their home in our basement (new clans arrive daily when previous tenants are vacuumed up) are being removed on a more frequent basis. I've also read that there are fairly benign pest control products that can be sprayed indoors to help mitigate the scorpion problem.