I hear good things about the Edge Pro.
That's an inside joke. I've turned a couple hundred guys here onto them. I have every sharpening gidget and gadget known to man from Smith Carbides to Wilton and Bader grinders and everything in between...
The Edge Pro and Ben rock.
IME most electrics are dangerous, but if you really want one I recommend:
http://www.catra.org//pages/products/sharpening/MODELEHONE.HTM 
