There is a mega-big tender for a Identity Management (IdM) Solution in S'pore. Sun has called for my team's help in the Proof-of-Concept phase.
I'm trained in IdM, but really not well-versed. :) My colleague will help out in the IdM portion. I'll help in the backbone stuff - sync-ing Sun Directory Server with Microsoft Active Directory.
That would be relatively easier than IdM. At least, Sun already has a product in Sun Java System Identity Synchronization for Windows 6.0.
What I like about Identity Sync is:
The Active Directory Connector can be installed on any platform, not necessarily on the AD box itself