http://www.exofitnex.com/
http://www.exofitnex.com/materials/nex_broch.pdf
Expect to pay $400 for one with front, dorsal, and side D-rings. Then add $120 for a good Y-shape dual climbing lanyard, plus $50-60 for a positioning lanyard. Plus tool belt, helmet, etc. BMX helmets work well, though Petzl makes some good dedicated purpose climbing helmets.

a dealer:
http://www.tesonline.net/