Firelink is the hub, yes. That's where most of the npcs gather when you free them, too.
Wolf ring boosts poise, which determines how much knockback you take when you get hit.
I finally got the ring I was after from the covenant, after a bit of a slip up which resulted in me losing 16k souls... oops. The ring is ok, but maybe less suited to my character this time round. I might have to invest in some endurance to give me a speed boost without Havels ring.
Time to farm some hunters for the bellowing dragon ring. I'm finding being a sorcerer way easier in some areas like the depths, but find Im still having to rely on my sword for anything that gets too close. The drake sword is still a godsend early-game.
This post has been edited by Traveller: 04 April 2013 - 07:46 AM
So that's the story. And what was the real lesson? Don't leave things in the fridge.