Well, after a brief read over on
www.diablofans.com in their DH forums... yeah build changed a bit.
Hungering Arrow - Devouring Arrow
Elemental Arrow - Frost Arrow (60% AoE Slow, with a shatter arrow like effect, at 170% damage... oh and costs 10 Hatred!)
Impale - Chemical Burn (Hits for like 12k for me, DoT is another 6k over 2 seconds)
Vault - Tumble
Sentry - Aid Station
Companion - Bat Companion
Vengeance, Archery, and Steady Aim
Steady Aim + Frost Arrow = Always got the +20% Damage
EDIT: Alright... just switched to Nether Tentacle, and DEAR GOD this rocks!