Basics with Robert Royston
Basics "101" with Michael Kiehm
And here's a nicely detailed video on how to step and flow to West Coast Swing music.
Finally, To further your dancing skills, you could go to www.youtube.com/MKiehm1 and "Subscribe" to Michael's ever growing series of mostly WCS dance tips. It's rare for an instructor of Michael's status to publicly offer so much advanced material for free.