Recommend what my Wizard's set-up should be like at level 30.
Currently, I'm running:
Electrocute - Chain Lightning
Diamond Skin - Crystal Shell
Ray of Frost - Cold Blood
Meteor - Molten Impact
Frost Nova - Cold Snap
Archon
Passive:
Glass Cannon
Cold Blooded
Astral Presence
Level 30 is still relatively early, so many of the more useful runes and passives have yet to unlock yet. If you can find a decent two-handed weapon, especially one with life steal, use that for Disintegrate. It doesn't matter if your paper DPS looks lower as long as the weapon has a good min/max and you aren't having problems killing enemies. A two-handed weapon will essentially let you skip having to use much of anything but Disintegrate as your main attack.
Disintegrate - Chaos Nexus
Teleport - Wormhole (lvl 31) or Diamond Skin - Crystal Shell
Storm Armor - Reactive Armor (Thunderstorm at 37, then Scramble at 43)
Frost Nova - Cold Snap
Hydra - Arcane Hydra
Familiar - Sparkflint (or Electrocute - Chain Lightning if you're having AP problems just using Disintegrate)
Glass Cannon, Astral Presence and Cold Blooded/Prodigy as your passives. Also, make sure that you're using the Templar's resource granting skill.
At 45 you could change it to this:
Disintegrate - Chaos Nexus (again, you need a decent two handed weapon)
Frost Nova - Cold Snap/Deep Freeze (or Teleport - Wormhole)
Familiar - Sparkflint
Magic Weapon - Force Weapon
Hydra - Arcane Hydra
Storm Armor - Scramble
Glass Cannon, Astral Presence, Temporal Flux (your Hydra and Familiar will snare almost everything).
Archon, while fun isn't really worth it aside from a 15s panic button until you are able to one-shot most trash enemies and have close the the runspeed cap (25%). It really opens up once you get Critical Mass at level 50.
This is what my Wizard uses to farm Master 4 Inferno (5 isn't worth it when doing specific boss fights):
Archon - Improved Archon
Magic Weapon - Blood Magic (my main hand does not have life stealing, and it's needed)
Familiar - Sparkflint
Frost Nova - Deep Freeze
Storm Armor - Scramble
Shock Pulse - Living Lightning (you use FN on a group, then spam this. Nothing else reduces the cooldown of Archon more reliably).
Glass Cannon, Critical Mass, Unstable Anomaly (you could change this to whatever else if you aren't finding yourself almost dying a lot). Currently when farming Act 3, Archon has close to an 80% uptime. It can be up for as long as ten minutes if you don't run into a sudden drought of enemies, but once you see that Storm Armor fell off, you may as well let the timer of Archon die so you can rebuff. The cooldown will be up anyway since it's the same time as Storm Armor's duration (just recast SA right before popping Archon) and Critical Mass would have shaved off much of the time before then.
I tried implementing Blizzard, but it just never worked very well with Disintegrate due to the AP consumption. I also didn't need Blizzard for the CC/Snare with the level 45 build above.