I've been on the AH, and switching from my 1100 dps 2h to, two 700 dps one hand (even swords with fast attacks per second) I'm loosing A LOT of dps.
Is it really worth it ? Am I not already very low dps wise ?
15K-20K is fine for a Monk.
You want to change your aura though, either Evasion of Conviction.
Get your LOH to 900-1000 cumulative (can be done by getting like 400/400 on your 2 weapons and the rest from your amulet). You can also try to get both of them socketed and fit them with LOH gem.
Like mentioned before try to get one of your weapon with 50+ LPSS so you don't have to use that passive. You can opt for Resolve instead.
You need to switch out your boosts with one that have higher Dex, some Vitality and Physical instead of Arcane resistance since you are clearly stacking Physical resistance on gear.
You rings can use more Attack speed and Dex if you can manage to get them. IAS is good for lower level Monks.
Amulet needs a lot more Dex on it and at least one other good stat (IAS, LOH, All Res etc, Crit Damage/Hit).
Glove needs a lot more Dex and at least one more good stat. Ditto for the Bracers.
Belt needs Dex obviously.
DPS will rise once you have some IAS and Dex. Conviction Aura, Sweeping Wind (Bladestorm) and Breath of Heaven can provide some source of DPS as well.
I haven't played in a while, but i got up to act 3 with no LoH on my Monk.
Edit: act 3 with Shield that is...
http://us.battle.net/d3/en/profile/Redhot-1111/hero/7418120
I am guessing you use Transcendance passive with the Shield version because I have a hard time seeing how you will survive Act 3 without any source of healing.