Weapon. If you don't want to use a Life Steal weapon, then look for a rare sword with high int, CD+OS, and maybe even IAS. Or, if you really like the EF, get one with CD+OS instead of the dex/int roll on yours. That should give you quite a bit of a dps boost.
http://www.diabloprogress.com/hero/bunnykill3r-1372/BunnyKiller/2292812
Crusader DPS and EHP Spreadsheet, meant for Crusaders
My Wizard