You're on the right path with some of your gear....but you can do bettter.
I'd start with a Witching Hour...depending on your budget....if doens't even have to be a good one. Just make sure that it has 60 AR. Even one with 8 IAS will get you do the 2.73 breakpoint...and your freeze will be better and your LoH will be better.
I'd also suggest new BT pants. Something will ALOT of VIT...like 200. On top of that, some sort of AR or Armor as well.
Zuni Boots aren't doing you anything unless you have Zuni Chest or Zuni Pox for the set bonus. I'd go for Ice Climbers at least...since they have AR...and find ones that have Armor as well. You coudl also try a Nats Set....boots with INT (and VIT) and a ring with INT and VIT. The boots have both high AR and Armor and the set with the ring gives you 7 CC. As a note, you really don't need LoH on either of your rings - you get enough from your pants and helm.
That's good for starters. Check out my guide, linked below, for more help!
Diablo III Wizard
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