You can just throw money at Postgres problems and make them go away. There are a number of very capable firms that do nothing but Postgresql support. And, they don't hold you captive w/ licensing. And if your needs are really that unique they can help you with building extensions to postgresql that support the capabilities you need.

See http://www.commandprompt.com/support/ for an example, or http://pgexperts.com/services.html