I think disintegrate and RoF are badass looking so with much anticipation of Diablo 3 I spent some time coming up with a build that would hopefully work well with both of them without using a signature.
Disintegrate w/ Convergence for larger AOE however I'm not sure how much bigger this makes it so something else like Intensify may be a better alternative
Ray of Frost w/ Cold Blooded, really good single target damage obviously, coldblooded for arcane sustainability. I'm to lazy/lack the capabilities of figuring out how sustainable this build is exactly so it will take actually playing in game to find out.
Slow Time w/ Time Warp, nice defensive skill for both melee and especially ranged attacks. Time warp makes it great offensively especially since this build is only channeling.
Familiar w/ Arcanot, mostly just for arcane sustainability but also works with Temporal Flux to slow things along with Disintegrate which is important since I wont be able to move while casting (the major downfall of this build)
Energy Armor w/ Prismatic Armor, for some reason I can't find myself leaving this armor out of any build. Increasing your armor by 65% and resistances by 40% just sounds like something that needs to be used for inferno. I could be completely wrong though. It also counteracts the negatives of Glass Cannon. And Astral presence counteracts the -20 maximum arcane power.
Diamond Skin w/ Prism, if **** gets crazy become invincible, not too much to be said. Prism will help with arcane sustainability and yes I do just like saying sustainability. My only concern for this is that it's max absorption is not going to suffice for inferno.
Glass Cannon: Damage!
Astral Presence: Sustainability!
Temporal Flux: Slow!
Let me know what you think