Knit like a Man’s David Demchuk has a great video on how to do the long tail cast on for knitting. I cast on using this method but I always find it hard to explain to people who are starting to knit. This video is great and you can pause it when you need to practice along. David is also a columnist on Knitty and you can read here his current article for Spring. Link.
Knitting: Long Tail Cast On (video)