The book Machine Quilting Solutions is wonderful! I use it quite often. It was one of the first ones I bought.
Another one I really like is Just Leaf It by Kim Stotsenberg.
The are two books by Suzanne Earley entitled Meandering Magic and More Meandering Magic.
i have not purchased these DVDs yet but a great gal named Patsy Thompson has her own line of DVDs for free motion quilting. I think her wesite is patsythompson.com or try goggling her name. Her website has some video clips on free to watch. She is fabuous!
When I first began free m otion quilting, I learned the more I practiced with paper and pen first, the better my quilting looked. I also use my son's Doodle Pro board/MagnaDoodle board to draw on.
Hope that helps!