Any Nagios users out there that have thought about setting up any monitoring of the Data Synchronizer?

Aside from typical monitoring of CPU, Memory & Disk Space that I do on all my Linux server I was looking at doing some monitoring of the Data Sync components.

At this point I will probably monitor the following processes: Postgre, configEngine.pyc, syncEngine.pyc, & connectorManager.pyc.

I will probably put in a HTTPS monitor to make sure the server is responding to HTTPS requests.

Does anybody have any other ideas for monitoring?