I've been looking at clippers...corded v. cordless, and Wahl/lister v. arco v. Oster. I want to spend $100 or less. I need to clip goats for show. I want a unit that lasts, is relatively quiet and stays cool. (I'd buy used too btw...if anyone has some). What clippers do you like and why? I've been using human clippers from wal-mart (Wahl) that have lasted 3 years...but the blades are dull and they get REALLY hot and need to rest...sometimes halfway through a goat...so I'm ready to step it up since we r showing now. My goats get a really thick undercoat and have fairly coarse guard hairs too...to make things difficult.