Yo, yo, yo!
A while back, I mentioned that there were a ton of great tuts via video podcasts for digital photography. Most of the casts I subscribe to are Photoshop related.
My favorite by far is Pixel Perfect with Bert Monroy. He is an amazing digital artist who will blow you away with what he can create in PS from scratch.
The past two episodes, Ben Willmore has been a guest on his show demoing and providing tips on creating HDR images. It's pretty nice, and it gives those who are unfamiliar with the process a little insight. Between the two episodes, I think the accumulative demo time is about 35+ minutes.
To check it out, search for "Pixel Perfect" in the Podcast Directory in iTunes (or whatever podcast manager you may use), and enjoy!