This is my new favorite blog. She posts a different machine quilting motif every Tuesday. You can see the past ones under 'Quilts/tutorials'. She breaks down each motif step by step. Her quilting is done on a DSM, but easily used on a track mounted system as well.
http://theinboxjaunt.com/
I am hoping she publishes a book, so I can have all her motifs in one place!
PS I also love Love LOVE The Pajama Quilter. She is wonderful for beginners. I still refer back to her DVDs often for ideas. her website says she is sold out, but if you email her, she might have a few more DVDs. She told me they are going to digitize them, but no time frame. A few emails might nudge that DVD along! lol You can view trailers from them on the site.
www.pajamaquilter.com