There are so many sites out there with these. Hatched in Africa has some freebees if you order at least $5 in designs. I went to their trunk show and their designs are great and not to dense for clothing
http://hatchedinafrica.com/
Oregon Patchworks is great because it represents alot of sites and has daily specials
http://www.oregonpatchworks.com/collections.php?id=MMED
emblibrary.com is also great; they also have kenny's corner and project and tutorials to help you if you need more info.
I just discovered this one yesterday. Great sale. We are doing the lady rose in class tonight
www.AnnaBoveEmbroidery.com
I think that now most sites offer quilting designs.
I hope these sites will help you get started.