Which would you recommend?

I have the 761-03 cordless with rechargable battery that I use on my dog and I love it. It is very quiet, and has two speeds, both of which can be used because neither is very fast. I've had mine now for over 5 years, and it's still working just fine. I got mine at wal-mart for $19.95. My dog doesn't mind me using it on him at all either. He just lays there and lets me file away. Highly recommended and easy to use.