The R12 Upgrade SIG, see below post for the details.
Craig Shallahamer, as usual, had spectacular data points, charting and graphic representations of complex ideas in his presentation “Introduction to Oracle Buffer Cache Internals”. This was not an introduction, but a detailed thesis on the proper configuration and troubleshooting of the Buffer Cache. Bravo.
Kamran Agayev gave a very good overview of “11g RMAN New Features”. I was very impressed with his research, demos and presentation skills (video in his powerpoints!).
Tim Gorman, the godfather of Data Warehousing, presented “Partitioning – Scaling to Infinity and Beyond”. Excellent, I seen this presentation a dozen times and still learn something new each time.