PC on 5 Items Please

New to trading. Not sure about prices and the differences in weapons.
I've got a selection of Gold Items. I would appreciate comments/price checks so that i can fathom differences between getting 20k and 20gp. Thanks!
Here they are:

Item 1




Item2




Item 3




Item4





Thanks for your time and understanding.

I can't see the % chance on the domination staff, but personally I think its the only item thats worth much, and thats only if you salvage and get the +5 energy mod. You could also salvage the last item and should be able to sell the poisoner's bowstring for ~1k.

You might think the +19% vs. dwarves staff is worth something but caster's don't exactly wand people alot, and the mods are pretty poor.

the dom staff wouldnt go for much because the skill recharge/cast = not for mesmer

Thanks For all the replies I think that I have a better idea of pricing now.