Well hello

I just started playing Vanguard the day before yesterday and have now a lvl 13 Kojani Monk on Infineum.
Even though I am still trying to figure everything out considering general gameplay (teleports, brokers yadda, yadda) I have been spending quite a while reading through this forums.
I understand that we are in need of a lot of changes (I kinda figured that myself after duoing with a cleric yesterday and feeling like getting out damaged constantly. My refresh timers were hardly met when the mob was already dead from spells and auto tattack from the cleric (thus the patch notes today puzzle me even more)).
Whatever fixes we need I still want to stick with my monk because it's pretty much the only class I haven't really played myself in my long MMO career. Or any real dps for that matter.
I do have now some additional questions which I couldn't find any good answers to either from googling or from search here:
a) How exactly do item level work and what are they linked to? What do I have to look for in order to know if I can equip and use a weapon or armor piece?
b) How do I compare weapons and what is the difference between calculating 2h dps and wielding two weapons with different dps.
c) How does the weapon skill directly influence my fights? Besides the mentioned 10% add at max do I for example miss about 50% if they skill is half maxed? I am trying to keep as many weapon skills as possible up - you never know if they actually all of a sudden decide to give as a weapon that is worthwhile and uber!

Besides it's just looks cool if I am fighting with a sword for kicks

d) does Item durability influence dps and/or armor bonus. Say if my weapon is not at 100% will it not do it's full damage or is it just not working at all if it's at 0% (or both).
e) about the two different Targets: I haven't really grouped yet but do you always have both active the defensive one and the offensive one, or do you have to switch accordingly?
I really couldn't find any proper answers to this so I would appreciate any feedback - thanks in advance!
