I realized this week that all of the sessions (and video recordings of each session -- I didn't even realize they were recording ALL of the sessions!) are available online. This means even if you ended up double-booked for two interesting sessions and had to choose just ONE in person, you can still review the deck and the video for the session you missed. Of course, that means you probably don't need to see my sessions, since you SURELY chose to see those in person and missed the OTHER, conflicting session. Right? :)
Anyway, here are the links to sessions I participated in this year. I think you may have to be signed in to the TechEd site to get through to these (and note that if you're signed in, you can get to these directly by selecting "Content Downloads & Recordings" in the left of the screen).
Also, I think the PowerShell session is going to be on the ITSShowtime site at some point in the near future as well. I'll post the link when it is up.