Thats my tank gear, I also have DPS gear that gives me roughly 6-7k more DPS with more health oddly enough. I think you need to focus on crit and crit damage. While still heading in the direction you are going with your gear.
I am not trying to come off as an ass, because I am very critical of my own play so I feel the need to be honest with you. I just cleared up the act 4 Diablo with the stats you have currently have using a shield while dual wielding, until the latter half of act 4 where I had to equip a shield. If I had the DPS you do dual wielding it would have been a joke. You need to examine your build and play style not your gear.
Thats my tank gear, I also have DPS gear that gives me roughly 6-7k more DPS with more health oddly enough. I think you need to focus on crit and crit damage. While still heading in the direction you are going with your gear.