EasyUO
EasyUO is a program similar to Razor. EasyUO allows you to write/run scripts that can make your character do pretty much anything. Many pre-written scripts are already available for use on the Forums
The most notable scripts that you should be interested in are:
HealR: Automatically applies bandages for you
Rearmer: Reactivates abilities (Primary, Secondary, or Momentum Strike). Also auto casts Consecrate Weapon/Divine Fury as needed. Will soon include Enemy of One, discord and potentially Curse Weapon.
UberLooter: Auto loots preset items. Warning: This will cause crashes on occasion.
Nabor Stats: Displays your current stats from gear (Resists, LMC, HCI, DCI, etc.) GREAT tool for checking your gear.
This is just a small sample of some of the scripts available. Check the forums for a full list and ask your friends which ones they would recommend.