There's so many great grinders out there, and new ones are coming out all the time. I decided to poke around amazon for 3-piece grinders, and while they don't have scs's, I found a very interesting one.
http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias=aps&field-keywords=Teardrop Shaped Herb Grinder
If you click the link, they also come in silver and blue. The design seems to be well thought out, with the upper lip on the inside to prevent residue buildup, aggressive "shredder-like" teeth, a nice rounded herb storage chamber, and of course the teardrop shape for those of us that are grip-challenged. I also like the placement of the magnet on the outside to not only line the teardrop up properly, but also to eliminate that middle area magnet that squashes instead of shredding the herb. The colored models are $49, and the silver one is $10 less so I would think it's not anodized like the colored models just polished aluminum.