You should join us! Perhaps Druidism or Sorcery would call you over. Assassin-ism? Amazon-ness?
I've seen other dual-throwers before, but they were few, far between, and not that good. I would shift Double Swing to being Frenzy, since it's better, and gives a sick speed bonus. With a Lagmancer, it should balance out the lag when running.
Probably since I've got BO and BC, you shouldn't need those, so I would probably stick another point in N.Resist, Iron Skin, or Increased Speed. Additionally, you'll probably want at least one level in Leap Attack, just so you can move around easier (although if you die during a Leap Attack, the game will no longer let you use it until you log out and back on).
If you have Leap (one level) and Leap Attack (one level), you'll probably not need Bash, which means you can redistribute the points to buff up some of the passives, but it's your call (I never used Bash, but it must be useful for something).