I'm appreciative for the new info, too.
So, do I have to recharge less when wearing partial "destruction cost reduction" equipment? I mean, I'd probably never notice the difference, and I don't invest in a full (100%) "destruction cost reduction" equipment, but am I reaping any benefit from the one item I enchant with the destruction cost reduction enchantment?
Thanks.
That is correct. You will not have to recharge as often if you have destruction cost reduction.
This information inspired me to enchant and carry around a longbow with 81 fire damage + 81 cold damage. It's light, and I don't have any archery skill to speak of, and it still does 162 damage. It's a great trolling longbow. I also enchanted a dagger with 34 absorb health and 54 fire damage. Absorb health is really quite useful in melee fight, especially if you don't wear armor. Destruction + enchanting is pretty fun combination.