I bought this nail trimmer from PetSmart
http://www.petsmart.com/product/inde...earch&keepsr=1 and I love it! It's comfortable to hold, easy to use, and also has a styptic dispenser (in case you cut the quick and it bleeds) and a nail file that is stored in the handle. I would recommend that you get the scissor style and stay away from the guillotine one. It's a lot easier to use and I would imagine less painful for the dog, too.