Administration Subsystem

Can someone recommend a gem/plugin for administration of users, roles, preferences, etc.? I know various CMS's like Radiant and BrowserCMS have this, but I don't necessarily want to build all my apps on top of them. I'm using Authlogic for authentication and acl9 for authorization. I was more curious about user interface options. I'm tired of building out my own, and was wondering if there were an easy drop-in option. I may actually be better off building on top of a framework like Radiant. It just has to be extensible enough to add my custom models and workflow. Thoughts?

Thanks, Mark

As far as something that makes it easy to add new users, roles, etc you could look into adding ActiveScaffold to your app.

I was designed for acting as admin pages, and the interface is pretty nice for things like that. I use it in a project for the main layout because I like it. You get some simple search functions for free, the author is very active in development (he's responded quickly when I had problems, sometimes caused by my lack of experience with it). And it is easy to install (just make sure you also install render component plugin if you are using Rails 2.3 or higher (mentioned in the readme)).