Mark
I think that's an excellent idea.
If somebody were to do that, I'd ask them to use xCase as a basis for their talk. I have no association whatsoever with Resolution that produces that product but IMHO it provides huge "bang for buck" in shifting between backends. In 75 minutes one could show the creation of a SQL Server and an Oracle model from local tables in a dbc, cover issues like nulls and handling blank dates and default values. Plus, examining the scripts it produces is quite a good way to pick up the tricky parts.
Regards
JR
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1