Jody, thanks for the udpate - much appreciated. Clearly I would be interested in the more standardized solution offered from SLT, so I would be very keen to see the details on that detailed doc you are mentioning.
We will be looking at some detailed design options on my current project in the next few weeks so i need to start getting some ideas together. If you could share whatever would be meaningful (SQL, colleague's draft document, etc), feel free to drop it to my profile email.
Many thanks,
Justin