Add $20 and look at Northern Tool's 1000 watt grinder. I started with one a bit bigger than the 400 watt'r and it didn't take long to want more power. There is also a 1200 watt model of it all over ebay. Also you need a better selection of grinding plates, especially larger ones, for a coarser grind. I do like the stainless steel tray and parts vs. the cast aluminum ones on the NT model. The stainless can go into the dishwasher, cast will dis-color (no functional problem, it just looks crappy) from the detergents. I hate to wash dishes. ;^)
I also received a 15% discount in-store coupon by email from NT, which would really put it close in price. If you have a store you can go to, ask for the coupon discount.
Just my .02 cents.