Membership > Portal Content / Multiple Content Level Permissions

Hey everyone,

I need to create the following for a client:

A "Portal" with 3 tiers of content.

This portal would have an 'intro page' where users could login.
The portal would have a 'Bronze,' 'Silver,' and 'Gold' tiers.
Each tier would have different content.
Each member would have his/her own unique login credentials.
The 'Gold' tier would potentially have content unique to that specific user. In other words, 'Gold' members would have personal content.

How should I set up the membership plugin to accomplish this?