Raccoons are like cockroaches. I'm convinced that when all other living things are dead and gone, the earth will be populated with raccoons and cockroaches.
I've learned to live in peace with my raccoons, it's a lot easier for me to accept them then to do battle with them. Although, this spring I will need to have my backyard resodded for the third time in 4 1/2 years. Raccoons are like little rototillers when they are looking for grub worms.
Grumpy ~ I was told by Animal Control to call Vector Control for help with wild animal problems. They will supposedly come out to your property and survey it. They will then give you suggestions on how to discourage the animals from being/making a home on your property.
Here's a link to the Orange County Division:
http://www.ocvcd.org/index.htm
You can find information about raccoons on their site too. Btw, we pay for Vector Control in our property taxes. It's a service many people aren't aware of.