Does anyone know how the inventory works, do I have a limited number of slots. is there a chest where I can store things if I want to try out a new build with different weapons but not give up my current ones?

@Garris: Yes there are limited slots, you can buy more slot upgrades from some traders. There is a chest in a house you buy that can be used to store your stuff.

during on of the demos someone pointed out that everything counts as 1 item, weight isn't an issue, but things like potions count for each different kind you have. So having 10 or 20 of the same potion counts as 1. There are no arrows as they just respawn over time.