What are good mods for elementalist wands, staves and artifacts?

I've pretty much only played a warrior since getting guild wars and therefore know what to look for when buying a decent sword, however I've recently just started an elementalist and really don't have much of an idea which mods are available for weapons, how high they go and which ones I should ideally be aiming for. Can anyone shed a little light on the subject for me?

Fortitude is always a good mod.
Energy storage is huge for an Elementalist. Then it depends on what you want to focus on, like Fire is very popular b/c the damage, and you will pay a premium for fire artifacts and staffs etc.
Mine are only 2ndary Ele. so I don't know the
At least this will help a little and bump^ your post.