Guild Wars 2

I am not sure, if there is an option at all like there was in Gw1, but can i change my gear or customize it?

Since i get a staff as Ele in pvp and thats it. Can i change to scepter or anything? (to same lv pvp items.)
Or i have to lv up and get an same lv item from somewhere? Or buy 1 from some vendor?

If you enter the Mists, the PvP area, you can find PvP vendors that will give you weapons for free.