life on hit, or boost ur dps might be a great option too.
I've about 40k dps and in act 2, elite packs die in less than 10 seconds.
but it's just an option.
I had a lxh set, I even had 1.500 lxh, i barely died in act 2 but i had 20k dps and for act 3 you need 30k+ ;)
I hope this may be useful for you.