Wait why do you have Entangling Shot for Belial?
It took me a few tries on NM because I built glass cannon so his meteors and fists 1 shot me.
My setup was Hungering Arrow + Puncturing, Impale + Overpenetration (strictly for the adds phase before him, use Chemical Burns for best dps), Caltrops (didn't use during the final phase because there was no point), Vault + Tumble, Companion + bat, Sentry + extra duration.
It was a pretty simple fight. Bat for hatred regen so I could pretty much spam Impale and it added dps since you have to move a lot, same with the sentry. Most of the time I have multishot in my build but I dropped it for that fight. Basically He always does a fist on the left side, then right-center, and then double wham in the middle. Followed by a few more fists, breath, then meteors over and over. It's all easy except the meteors. Basically just fire off Impale VERY sparingly during that period and just keep running around staying out of the AoE zones. As long as you have some quick reflexes you can use Vault, too, but I relied mostly on just running because I didn't want to accidentally Vault into another meteor location. Just rinse and repeat. It's more about running than dps.
EDIT: My dps was higher (I think like 1800-1900 at act 2, I'm in act 3 now and at 2400), but you have more health and defenses than me. Like I said, everything one shot me and I still made it through fine after maybe 5 deaths.
Edited by Threllen#1475 on 5/17/2012 12:42 AM PDT