Geodatabase Essentials Presentations
Following up on our UC presentations post, Brent and I are posting the tech workshop presentations we gave (with other members of the geodatabase team) down in San Diego at this year's user conference. You can check out the presentations in PDF format by following the links below.

Geodatabase Essentials Part I – An Introduction to the Geodatabase
Geodatabases Essentials Part II – An Introduction to ArcSDE Geodatabases
If these slides are not enough, you can order all the technical workshop recordings through Source of Knowledge here.