designsbysick is a great site.
this is my favorite site (so far) for machine embroidered quilting motifs:
http://www.emblibrary.com/EL/Browse....ategory=Quilts
the quilting motifs aren't usually offered free, but they are very inexpensive. you can buy them individually or in sets. you won't believe how many of the individuals are only $1 each! :-)
best news? they are having a half-price sale this weekend.
everything not already on sale is half price if you use the code GiveMe50 when you check out. they will also automatically add 5 bonus patterns to your order free of charge. the sale ends at 11:59pm, central US time, tonight.