I also would urge you all to support the nurseries. I have plants received from SMG, Perennial Obsession, Edelweiss, Mountain Crest Gardens, Youngs Nursery, Green Gate (they don't do mail order), North Hills Nursery and Simply Succulents. All are reputable succulents nurseries. Some of them also offer other wonderful plants.
Meanwhile me, twit and Kate would like to get you off to a good start in your collections.