WordPress MU

Anyone knows of any WPMU compatible membership plugin? You know, stuff like; Golden member, Silver member... PayPal, Google Checkout...

There is probably something like that at WPMU Premium but I'll check that when I register... any day now.

Thanks

Any activity on this topic? I've been looking for a member access plugin as well but nothing quite fits for MU (that I've run across). I just want to restrict access to certain pages and posts to only registered users of a blog. I don't even need the payment features for membership.

Any info would be appreciated!
Thanks.