I recommend either the Robocut or the Flowbee. I chose the Robocut because it can cuts down to 1/4 inch hair. Interestingly you can find both the Robocut and their competitor , the Flowbee, at Robocut's main website. They also have a Flowbee vs Robocut chart. Here is a link.
http://www.robocut.com/compare.html
The free shipping that I mentioned must have been a special offer at the time that I ordered. It looks like you will have to pay some shipping now.