Grats, Timman! The Winged Spear is seriously beefy; I've already got mine upgraded to +3.

I rang that first bell last night. Felt good.
After that I went back to the only locked door I found in Undead Burg and sure enough, one of the keys I had acquired opened it up. Down there I killed another boss, found a dude locked in a house (no idea where that key is) and eventually found my way into the sewers. After some exploration and killing a particularly large rat, I found myself staring at another boss... this one seems to shrug off my attacks. It killed me and that's where I called it a night. I also have no idea if I'm heading towards this "Blighttown" that the one NPC mentioned I should go to for the second bell, but at least I'm able to handle what's down here.

@Rush - I found a merchant that was selling the Transient Curse item. It's... kinda expensive.