The HSC-100 looks pretty slick, this case has a nice industrial look. Basically the whole case is one giant heatsink. I'm not sure how this works as ThermalRight hasn't released any details yet but it looks like you somehow need to mount a copper base plate to your motherboard which then dissipates all the heat from your processor through several copper heatpipes to the left sidepanel.
This allows you to create a really silent case, without any fans, but I'm not sure if this case will be easy to use. From the looks of it it I suppose systems with these cases won't be easy to upgrade as you may need to remove the heatsink first before you'll be able to open the case..
The Tech Report has some photos: