BTW Donal,

I understand from your past comments that you are an architect.  Just in case you don't know him, one of the speakers, John Spears, is an architect with exceptional experience in high performance, energy efficient building design.  He bid on a green building design project that I managed a few years ago and I had the opportunity to read his resume and speak with him.  

Thanks for the heads-up.  
He's from my old home town, too:
http://www.sustainabledesign.com/index.htm

See you there.

Doesn't say that Spears is an architect, actually.  He's a Certified Energy manager.  Another fellow is the RA.
I've seen his full resume, and he is an architect by training.  Energy is certainly his niche, though.