Setting up AIX, Solaris, Ubuntu with Active Directory

It was a nightmare...
Lucky there is this Likewise-Open

Enterprise Edition: http://www.beyondtrust.com/Products/PowerBroker-Identity-Services/
Open: http://www.beyondtrust.com/Products/PowerBroker-Identity-Services-Open-Edition/
or http://www.powerbrokeropen.org/

Makes my life wonderful...