I am going to start with all the mini bosses in Act I and do my best for linear progression from there. It is easier for me to remember what I have found that way, and I am hoping to eventually get them all.

Nice try, you. Inciting us to actually farm all the game huh?

Whoa. Whoa. Whoa. Let's not start talking crazy now.

Is there any plans to encourage us to do more random events :D

Patch 1.0.5 and 1.0.7 added a lot of random event changes and made it so most of them give players 1 stack of Nephalem Valor when completed, can drop Demonic Essence, and (if they involve a special chest or unique monster) can drop additional loot for every stack of Nephalem Valor that you have. I think those are some good steps in that direction, but I would certainly be interested if you have any additional ideas.