Here is a link to crystaleyecandy, which showcases designers that digitize for crystals. Down the left side look for crystal embroidery.
this site has a bunch of designs you could add bling too, she uses them all the time in her designs
bullard design has some designs worling with hot fix crystals too and not not gilrish at all
Embroidery Library has lots of designs specifically made to accept hot crystals (and all of their designs sew out very nicely).