Hi dsanchez01

We have done something similar to what you are probably trying to achieve, we have a bunch of member management tools and reports that we have integrated into mojoportal as custom content features.

We also have our own tables for member management, after looking around at what people had done in the forums we decided it was best to leave the online member management to mojportal, as the whole system is designed to use this facility, and just synchronize our member table with mojoportals member table, their is plenty of code to look at, particularly in the member management area. 

The main issues we had to look at were.

• We used our own registration process, which meant creating users in mojoportal via code.
• Synchronizing information to mojoportal from our member tables wasn't too much of an issue as we have control of it.
• Synchronizing information back to our member tables from mojoportal was a bit more difficult as you don't ever want to change mojoportal code, we achieved it by using triggers in sql server on the member table.

I know mojoportal has active directory integration though I have not needed to use it.

I'm not sure if this is what Joe would suggest but it seems to be working for us, hopefully it gives you a heads up.