Site Supporter and Blog Supporter

Hello,

I was wondering around Blogs.Mu and I notice they have two different types of supporters. This is super cool and I would like to do something similar.

In my case I would like to have:

Elite (Adfree Network, Simple Blog)

Pro-Blogger (Adfree Network, Analitycs, Plugins, Small Blog Network) Maybe PaytoBlog Plugin??

Thoughs?

Thanks,

W.