I made this build, and so far on lvl 55 and it is working fine for me
i used to be full affliction with imp on passive, only for mana and stamina boost purpose
But with this build (i am now mostly affiction / demo, later i will put points into destruction as well) it looks i am killing faster, always have enought life and mana, and no downtime as well
I am usually grinding by drain tanking and having succubus out
this is how I plan to be at lvl 70
Any opinions, flame if u must :P
http://www.worldofwarcraft.com/info/classes/warlock/talents.html?0502220502201100000002050033102200000000000505002512000010000000