limit usergroup by number of days mod?

[imhere2009]

Hi

I dont know if there is a mod like this but im after a mod that i can use to setup a usergroupd, so when users sign up they get put in this user group automatically so they can play our online game, then say after 30 days, it runs out so they have to subscribe to enable to play the game again,

Hope you know what i mean by this.

Thanks
Steve