I am also from Pittsburgh. I work as an agency nurse in Pediatrics. I personally think that the "key" to working agency is to get a contract. I have to work three days a week for a particular institution and they are unable to cancel me. The three days works for me because I have a young child at home. My contract is for a three month period and then reevaluated at the end of each three months. I think that Stat, K-force and maxim are pretty good agency's in the pgh area. Hope this Helps!