You can download the PPTX files from TechNet Download Site. In case you do not have office 2007, you can open the 2007 docs if you install the compatibility pack The PowerShell scripts are attached to the post and the Reference Handout can be downloaded here.
If you have not attended the event yet, you can print and bring with you for notes. Upcoming events are posted here
Dan Stolts TechNet PowerShell Scripts from 2008 H2.zip