Understanding Gear - Stackability and Enchantments

[Eponine]

I just found out (by wasting a lot of my destitute character's gold) about how items can have their magic effects stack or not stack.

I read the manuals that came with NWN and I googled around and found this... Does it Stack and read all four parts of it but am still really confused.

Is there a better reference (other than searching forums here and on NWN) that explains gear and item effects - especially how to mix and match gear? I am also confused by the relative value of different enchantments (for example are boots with a reflex save better than boots with fortitude, or is a cloak with +12 spell resist better than a cloak with +1 AC). I understand these things are not directly comparable but how do you learn to weigh the relative value?

Is most of this knowlege just gleaned from a lot of reading and playing or is it spelled out on any sites you all could recommend. I don't really care that much from a powergaming standpoint - My character likes to shop and I just want to make sure I don't keep buying useless combinations of items as I start to outfit her.