Here is my very close to BiS Destruction Warlock:
http://eu.battle.net/wow/en/character/eonar/B%C3%ADosh%C3%B6ck/advanced
Please note:
I have 99.71% crit and that is why I have opted for crit on certain items.
What I'm missing:
http://www.wowhead.com/item=128169&bonus=0 (Signet of the Third...