Well, I said I'd let you know. Thanks for all the wonderful and also the silly suggestions! Unfortunately, many of the wonderful ones would have been a bit hard for the French to pronounce (and for us to explain...)We've ended up as four of us, and we're called Griffon - sort of vaguely celtic, easy pronunciation, and happens to be the surname of one of the band (with a slight adjustment). The first gig is St. P's day (Friday), the 2nd the night after, the 3rd next week...
Thanks again all,

Jo