How much are you looking to spend? I have some that work perfectly with whiskers, ears, bridle paths, etc, but couldn't handle a full body clip. I'm thinking about selling them for some that could do a full body clip. I've had them for about 2 years and they're still going strong. They work cordless as well, but they are noticeable weaker when not plugged in.
I only have a #10 blade, which is not exactly ideal for whiskers, but is still better than nothing : ]
This is them: Dover Saddlery | Wahl Pro Series Rechargeable Horse Clipper .