ZX330
Banned
In North America these show up mostly on wheeled excavators but they are starting to show up on crawlers too.
The cost is up there for sure, but don't forget they usually include a quick coupler (quickfit) on the bottom side, so you get that extra functionality for the price. Most common attachments are grading buckets, grapples and forks.
Blueman
My friend who lives and works out in New Mexico (TLC Plumbing & Utility) just got an engcon EC05 and Grading bucket for his Hitachi 50U tracked excavator delivered to him a couple of weeks ago. Picked it up through a local engcon dealer here in So. Cal.
http://s760.photobucket.com/albums/xx247/ZX330/TLC/?albumview=slideshow