Many folks interested in Mastering Drupal are looking for videos.
I decided not to create a full screencast series as part of this site, but our team is still producing videos periodically and making them available for free. However, since this site was started there have been two new companies launched that offer Drupal vides.
BuildAModule.com - Drupal videos by Chris Shattuck
Chris Shattuck, a really great person and competent Drupal developer/themer/site builder, created BuildAModule.com. This site has tons of videos broken down into short, digestable chunks. If you need to learn one specific thing you can watch just that video. They are also thoroughly screencasts: you see Chris' screen. He's great at using on-screen tools to highlight his mouse and the item he is working on so you can follow along.
The pricing is very reasonable between $23 and $29/month for online options or $29 to $399 for his DVDs. Note that his DVDs are actually full of video files for playing on your computer meaning that they are much longer than "DVD" might imply.
Drupalize.me from Lullabot
And of course a second option is Drupalize.me from the Lullabots. They have combined their tutorial videos, DiWD videos, and some site-specific videos to create a large library with a diverse set of presenters.
This creates for an interesting presentation of content because it mixes up medium length purpose focused material like "how to theme in Drupal" with a presentation style instruction where you might not be able to see the screen but the presenter themself might be more interesting.
Pricing on Drupalize.me varies from $35/month to $45/month depending on your commitment.
What do you think? Do you subscribe to either one of these sites? Are you getting videos from somewhere else?