Start with Heart of Sin-Second Heart. You need Twin Chakrams because they drop. Tower level 1 is nice to farm, you run along the south part and you will here your companion say there is a mighty foe before you can see them. You can just follow the edge around and kill a couple of packs to get to the loot, or just run through them. Nothing zomgexploit but it is nice if you have trouble killing stuff.
First area Tower of the Cursed Level 1
http://youtu.be/-TPAwuLEnCQSecond Area if you progress.
http://youtu.be/G9FqeJWZLgc