Here's a handy list of SQL training opportunities, feel free to add...
Two days - Pragmatic Works' Workshops
, kind of a traveling road show. Two days and $400ish is one of the best values around.
For multi-day conferences I've been to PASS Summit
and PASS BA Conference
. Both events are full of BI training, and are also excellent for the vendor row, networking, and after-hours parties.
is a one-day, 4-5 session free training that appears throughout the world. I've been to four, presented at one, and convinced EE to be a sponsor at one. Usually a bunch of prizes are drawn at the end.
There are other events such as TechEd, but I haven't been to one and can't speak to it.
Online Free Stuff
Pragmatic Works has webinars
, mostly in BI areas, done by their consultants that are very good.
YouTube has a lot, but I'm noticing a trend where the speaker's presentation skills are mostly lacking.