Definately oster clippers, i used them when i used to clip, a number 10 on muzzle, belly and bum, can't remember exactly but i think a number 7 or 5 goes best on body, and they make a smaller blade for feet, all up gives a really nice 'bear' clip, i think its called.
Hey my brain kicked in not a bear clip a 'lamb' cut, oops!!