Multi domain site + Frontend posting

Hallo,

I would like to know which plugin I can use so users can, in the FRONTEND, register, edit profile and add posts on a multi domain site (this so users can add posts whit one account on different domains).
Also all the new added posts should be reviewed by admin before publishing.

Whit multi domain website I mean one installation whit different domeins
http://www.domain1.com
http://www.domein2.com