Yelp, you didn't let me down! Can't beat the price ($6.99 for a passport photo) or the service at Passport Photo. The owner is very outgoing and treats everyone that walks through his door as a long lost friend. I was in and out in 10-15 minutes!
What I appreciated is that he took a few shots and let you choose which snap you liked best. That's a great advantage especially since you're stuck with this photo for 10 years. I'll be telling all my friends about it.