Giles Bowkett (Ruby Inside's top Ruby presenter of 2008) has released a series of free videos called "Secrets of Superstar Programming Productivity" that could interest some of you:

Flow (22 minutes)
Metrics (17 minutes)
Habit (22 minutes)

Giles' style isn't for everyone, but he shares some great tips in these videos and they've been very well received on Twitter. Enjoy!