There are crafting disciplines for all the different types of armor, and there are ones for marital weapons and ranged weapons. If you want to make magical weapons though (staves, scepters, etc), then you will want to pick up the Artificer discipline. You will also be able to create a few upgrade components as well, but the majority of the crafted items will be weapons useable by the scholar professions.
In traditional MMOs, items are the reason for playing the game, for griding through dungeon after dungeon to obtain the highest-level gear possible.
Given the fact that Guild Wars 2 challenges this by essentially removing that gear grind, the role that all items play in the game, armor and weapons, takes on a different meaning.