I use this one. It's matches the Lee safety scale exactly and has greater capacity for things like bullets, which the Lee can't do if over 100 grains. Plus it's a lot faster.
It's a little susceptible to static and the batteries need to be good, the oem batteries are junk and should not even be installed - no exaggeration. It powers itself off after only around a minute, and that's a bit annoying and it uses batteries fairly quickly. Will measure only to a tenth of a grain. Despite all that, I like mine a lot and I use it 3-4 times a week.
http://www.midwayusa.com/eproductpag...eitemid=713372
It comes with a reference weight and a tray for powder plus a small scoop that is surprisingly useful. It's pretty small, an average coffee mug would cover most of it.