MemberShip Roles

I was looking at the Membership plugin, I am not sure if it is exactly what I am looking for or not. I want to be able to control who see’s what pages and posts. I am using BuddyPress. I use User Access Manager, but I don’t think it works in BP. I do not want them to choose their roles, I want the roles of users set by administrators only.

Anyone know of any solutions for that functionality?