Are you a buyer or a seller? Most agents that "specialize" in foreclosures do so from the seller's standpoint. As a buyer, the agent you target should be one that knows the entire local real estate market. Not just the distressed sector.
Additionally, buyers should have their own professional representation. If you use the listing agent you essentially elect to use the agent that all ready has a relationship with the seller. This may not afford you the type of representation you require....especially if you are seeking value.
Just keeping it real!