Elemental attacks/armor

I want to make items that give a unit's attack an elemental damage bonus, and I also want to make different armor that can lower damage from specific elements, nullify it completely, or even absorb it. Any ideas how to accomplish this?

This is really quite simple, although you will have to sacrifice some armor/attack types

under <advanced|gameplay constants> you can change the armor resistances to each type of attack, then you can change the captions on user interface, and replace some of the pictures

Axiverse, you're right there, except I've never been able to find the captions for changing armour(australian spelling) and attack types in the mpq or the game strings. So I don't think it can be done to that extent althought you'll be able to change the icons and percentages easily. But, if you do find a way, pm me, I've always wanted to know about those strings.

And secondly, that doesn't exactly help with the item part, to my knowledge there aren't any items that change the attack type of unit when equiped...You'd have to have different units with different attack types coupled with the different armour types giving you around 5x6 different combinations for each unit. Meaning around 30 combinations...Sounds like you'll need to use triggers somehow, but even then triggers can't just read the armour type of a unit can they? In short, this isn't as easy as it might have appeared. I'm really not sure how you'd go about the item part...

Do something like this:

Triggar

E: Unit gets an Item
C: Item equal to Frost Shield
A: Set "RedColdResist" to 5

Triggar 2:

E: Unit gets attacked
C: Attacking unit has item "Frost attack"
C: "Red Cold Resist" equal to 5
A: Raise attacked unit's life by 5

Try something like that.