I've mentioned the conference before, and I thought I'd take this opportunity to point out that they've changed things around a bit. The conference is now at the beginning of November, and instead of being focused on Business Intelligence, they've combined their conferences for SQL Server, SharePoint, and .NET Developer technologies into one big show.
I flew out to Tucson at the beginning of September to record my sessions, and had a really good time. I learned a lot about how the conference works, and was really impressed with the format, and how things are run. Compared to what other conferences costs, I think you get a ridiculously large amount of content for what they are charging.