sansemo

From Vencedor:

Here’s the cookie cutter stuff for arcane

Spec:
http://www.wowarmory.com/talent-calc.xml?cid=8&tal=2300051331003301503231025053210300000000000000000000000000203203001

Glyphs:
Arcane Blast
Molten Armor
Arcane Missiles

Gems:
Meta: Chaotic Skyflare Diamond
Red: Runed Cardinal Ruby
Blue: Purified Dreadstone
Yellow: Reckless Ametrine

Enchants:
Head: Arcanum of Burning Mysteries
Shoulders: Greater Inscription of the Storm
Cloak: 23 haste or Lightweave Embroidery
Chest: +10 stats
Wrist: +20 spell power
Gloves: +28 spell power
Pants: Brilliant Spellthread
Boots: Icewalker (+12 hit/crit)
MH: +63 spell power (Black Magic might be ok, but spell power is probably better)
2H: +81 spell power
Rings: +23 spell power

Rotation:
Sorry, you are on your own here

Rotation:
Arcane Blastx4 then missile barrage (unless you have the proc) then arcane barrage.
I think the elitist jerks have some other examples but generally this is the one.

For Arcane the basic idea is 4 Arcane Blasts (since it stacks 4x) followed by Arcane Missiles and then Arcane Barrage.  Through in Prescence of Mind where applicable for an instant cast Arcane Blast.  Keep in mind that due to mob health or fight mechanics you may only have time for 2 or 3 Arcane Blasts.