reduce time in skills

First of all, sorry for my noobish english.

Second i have a question who is killing me...
Wich jewells i should take for get a less reuse on skills, 8 seconds on balance sometimes is not enoguth, because of the damage of the party... and what's the diference between Valakas necklase (reduces the skill cooldown) with for example Istina necklase (m. skill cooldown --%)?, and wich you would choose for a healer?. To many questions, hope someone can help me.

ty in advice :)

many things in game reduce cooldown besides necklace. stackem up

i use an enhanced istina neck wiz or frint soul depending on class

i use an enhanced istina neck wiz or frint soul depending on class

Talking about healers :P wich others ways?

evas rune from prestige pack or auction house

As far as I remember

-5% Re-Use (Magic and Phys) - Frintezza Neck Regular
-5% Re-Use (Magic) - Freya/Blessed Freya

-10% Re-Ues (Magic and Phys) - Valakas, Blessed Valakas, Frintezza Soul
-10% Re-Use (Magic) - Istina Wiz
-10% Re-use (Phys) - Oct Warrior

Not sure on the others.

Frint Soul > Istina Wiz for almost all situations apart from oly or fighting stacked mages.

Agree with Vood in the Eva's Rune too (from prestiege pack), they're very important as they give -20% re-use.

Other things:
+6 Robe Set (3% Re-Use)
+8 Light Set (10% Re-Use)
Be an Eva's Saint (10% Re-Use at 99).