Here in Houston, TX it is also pretty difficult to find a church that has not been eaten up with moral relativism. My wife and I are still searching after seeing our PC USA church of many years go down the tubes. We are trying to find a PCA church we like, and they are few and far-between.
You’ve probably found this already, but here is a link to the directory of PCA Churches.
http://www.pcanet.org/directory.asp
We love our PCA church here in Florida.