One of my grooming instructors introduced me to these and they're my favorite clippers ever.

http://www.amazon.com/Millers-Forge-Stainless-Steel-Clipper/dp/B0002ARUKQ

They cut like butter. The only "bad" thing I'd say about them is that they lock when you're new to them but if you know how to clip nails quickly and safely it'll never happen. Then I dremel the sharp corners. :)