okay...
Helm:
Harlequin Crest: Lots of mana for spamming Tornados, lots of life is always good, a bit of damage reduction, MF and the sweet +2 skills, basically every casters dream
Jalal's Mane: Bonus to Strength to equip some heavier items like Stormshield, bonus to energy=more mana=always nice, +30% resists is also very nice if your Cyclone Armor should run out so you won't be 1 hit-killed. Some faster hit recovery to get out of sticky situations, and the +2 skills for extra damage. Looks cool
Nightwing's Veil: Mostly for the +skills and extra cold damage, but not so good in my opinion.
Amulet:
Mara's Caleidoscope...insanely sweet amulet, +2skills +stats, and +resists can't really ask for more.
Rare/Crafted Caster: Except of course for a godly rare. A crafted caster ring can spawn with Faster Cast Rate and +2 druid skills, and other mods making for the godliest amulet ever.
Weapon:
Heart Of The Oak runeword: Best Wind Druid weapon there is...+3 skills for massive damage, and 40% Faster cast rate to reach those vital break points. Extra mana=always good, huge chunk of resists, and some dex to keep your blocking up...godly.
Earthshaker: +3 elemental skills, not much else
Suicide Branch: +1 skills, 50% faster cast rate, increased mana and resists not bad at all.
Wizardspike: Huge mana increase, huge resists, huge fast cast rate...very good for casters generally but not really all that good for Wind Druid unless you really need the mana.
Armor:
Chains Of Honor: +2 skills and +65% resists makes for one godly armor, just make it in one of the lighter elite armors (Archon Plate)
Enigma: +2 skills, Teleport

, Magic Find, and some other stuff. Very good armor for Magic Finding, otherwise Chains is probably better.
Skin Of the Vipermagi: +1 skills, good resists and Faster Cast Rate...Very good armor especially if you need the FCR to hit a breakpoint.
Shield:
Spirit: Bad blocking but everything else is good. Mana, resists, +2 skills!!! and faster cast rate, pretty much the ultimate caster shield if you can swallow no blocking and high requirements.
Stormshield: Good block, high resists and damage reduction...this is the safest route, at the expence of some power...your choice.
Lidless Wall: Mana increase, faster cast rate and +1 skill, good choice if you go all vita.
Belt:
Arachnid Mesh: Best belt you can get...+1 skill and Faster cast rate, and some extra mana.
Rare belt: something with resists, +mana/life, MF, +str/dex to equip stuff.
Verdungos: Nice boost to life and some damage reduction, solid choice, but not outstanding.
Gloves:
Magefists: Some faster cast rate for reaching break points, and some mana regeneration...okay gloves.
Frostburn: Only if you need the mana, cause that's all you're gonna get.
Chance Guards: For MF only.
Rare Gloves: Same mods as on belt, can be very good.
Rings:
Stone Of Jordan: +skill is very nice on a ring, and the mana boost is cool too.
Bul-Kathos Weddingband: +1 skill and life, depends on whether you need the mana on SOJ or not.
Nagelring: For MF only.
Ravenfrost: for Cannot Be Frozen and some dex...not really a good choice...
Boots:
Sandstorm Treks: Good allround boots with lots of helpfull stats, like FHR, +str/vit and some poison resist, which is actually quite nice since Cyclone armor doesn't protect you from poison.
WarTraveler: For MF only.
Waterwalks: some dex for blocking and nice life boost.
Silkweave: If you really need the mana.
Rare boots: Same mods as gloves and belt, can be very good.
That's all I can think of.