My old guild leader from 6-7 years ago boxed a ranger and shammy, and he swore by it. I've never played either, so can't comment myself.
Currently boxing DRU/ENC/MAG, not through any specific planning, it just sorta happened over the years :) Probably nowhere near optimal, but it works for me.
Plus, at the speed I level, changing classes now would be a killer!
Tatanka Wolfdancer, 106 Wood Elf Druid, 7 x 300+ Master Artisan, 7 maxed trophies :)
Anaceup Mysleeves, 105 Erudite Mage, 2 x 300 Master Artisan
Snookims Whinslow, 105 Erudite Enchanter, 2 x 300 Master Artisan
<Inisfree>, Tunare (Seventh Hammer!)
Tatankaa (95 Inquis)/Urkell (38 Conj)/ Seanthornton (24 Pally), <Inisfree> Freeport server (some other server now)