Courthouse Direct (www.courthousedirect.com) and Retriever (I can't think of their contact information off the top of my head). I don't know what the pricing structure is now, but I always found them to have good prices especially for volume. Plus, with courthouse direct, you don't have to buy the whole image.. you can preview the pages and just buy the ones you want. So, if your client is only asking for first/legal/recording, you don't need to buy the entire document to get them the copies they are looking for. It's a definite bonus, especially in California - the copy prices are insane there!