Funnily enough, I bought a couple of Moroccan mint plants, only the other day. I buy it for making fresh mint tea, so I'll be taking rooted cuttings and planting up some containers with my new plants.
Moroccan mint doesn't have the savoury, tannic notes that you get in some other mints, so I would tend to use it only in tea or in sweet dishes. It is delicious! ;D
I bought mine online from Manor Farm Herbs.
http://www.manorfarmherbs.co.uk/ The package arrived very promptly and in excellent condition - but then, it only came from Oxfordshire to Hampshire.