I presume you've decided to go with a monk. Since you're fighting with a weapon, you're missing out on one of the main draws of the monk class, which is the increased unarmed damage. You might want to consider either fighter or ranger if you're planning to go the two weapon fighting route. Ranger would play more to the tribal nature, while fighter would give you a bit more of the feats you may want.
Here are some suggestions. I'm assuming you'll be starting at level 6 based off of a comment Darksiege made earlier. I'm also assuming you'll be playing a human. I'm building all of these up assuming the base rules. DE might have accelerated the rate at which characters gain new feats.
RangerFeats:
Combat Expertise,
Improved Trip,
Two Weapon Defense,
Improved Two Weapon DefenseBe advised that the last feat requires a dexterity of 17. It isn't absolutely essential to the character, and you might want to swap it out for something different. Also notice that the first feat (and thus the second) require you to have an intelligence of at least 13. The monk class waives the requirements for Improved Trip, although Combat Expertise is pretty good by itself. Additionally, a non-human receives one fewer feat, so you would likely not be able to take the Improved Two Weapon Defense feat if you were a dwarf or a half-elf.
As a ranger, you would automatically get the following feats, regardless of whether you meet the requirements:
Track,
Two Weapon Fighting,
Endurance, and
Improved Two Weapon Fighting.
The ranger class also gives you an animal companion, and a lot of skill points to throw around. By level 6, you would also have a limited capacity for druid-like magic. You also would have full proficiency with nearly any weapon, light armor, and most shields. Not that this setup is interested in a shield.
FighterFeats:
Combat Expertise,
Improved Trip,
Weapon Focus,
Weapon Specialization,
Two Weapon Fighting,
Two Weapon Defense,
Improved Two Weapon Fighting,
Improved Two Weapon DefenseLike with the ranger, a non-human gains one fewer feat. Also like the ranger, it's probably Improved Two-Weapon Defense that you drop off. Unlike the ranger, the fighter does not get to bypass the ability score requirements for the two-weapon fighting feats. You also get to wear heavier armor. Due to the way the two-weapon fighting feats work, you might just want to take the 17 dexterity and leave it there, without developing your ability to dual wield any further. Your extra attacks granted by the later dual wield feats are not very likely to hit, and the effects of higher dexterity scores are limited by heavier armor. Since a fighter can wear chain mail or breastplates (or even full plate), this makes an 18 or 19 dexterity less appealing than it is to a ranger. DE has fiddled around with the armor list for his game, so you'll want to ask him about that if this option strikes your fancy.
Fighters get bonus combat feats at level 1, and at every even level. Chances are if you want something, you can fit it in. Something like the Improved Grapple feat the monk gets - you'd probably knock off both two-weapon defense feats for Improved Unarmed Strike and Improved Grapple. If that sounds like it's up your alley, you might want to have a look at
Knifefighter.