You can also use Quilt CAD for designing your own quilting.
I have it with my HQ ProStitcher and use it for this quite a lot. I like that I can repeat, resize, and more. Of course, with the HQ it also drives the machine to do the quilting I choose.
I printed off the tutorials and put them in ring binders for reference. Best to use prepunched paper unless you like to punch your own holes for the ring binders. It took awhile but was well worth it for me.
Enjoy,
ali