PP's advice is good - though you might need a doula for a far shorter period of time than it would be helpful to have a baby nurse. Good for you to plan to get some help!
I don't have names for you but I'd suggest that you join MCPOM (Montgomery County Parents of Multiples) and ask this question there. You'll immediately get names, recommendations, tons of other useful connections or advice, etc... It has been incredibly useful to me as a resource and also to meet other parents of multiples.
Congratulations!!!