A quality course requires someone who knows the subject and can effectively teach at the same time. I've found nobody better than Jan Kabili at lynda.com. A few of the chapters are free so you can try out her style. Then you pay $25 per month for access to all they offer. The trick is to sign up for a month and cancel the next day. That will allow 30 days of 24 hour use, which should be enough to enjoy all five of her courses on PSE 11. They will automatically bill you each month if you don't cancel.