Originally Posted by
lil brown bat
I've never seen a full-face helmet for bicyclists that is similar to a motorcycle helmet, but perhaps motocross gear? It seems like a bit of overkill to me, though. I'd just go with one of the many Seirus facemasks.
Just look at the SixSixOne helmets. Full face. Designed for downhill MTB. That's where most of the gear the OP is listing will be found. Body Armor, full helmets, elbow/knee protection, etc.
http://www.sixsixone.com/sixsixone_bike.aspx