Advice On My Bladestorm Build

[Thoron Entheart]

I'm a relatively new player to pathfinder, and I haven't played more than 2 characters at all throughout my life as a roleplayer (I'm part of one roleplay group and we've been playing the same campaign for nigh on 3 years now) and I've recently built a rogue character who has ridiculously good stats, but I have no idea where to take him.

His Current Stats:

Jenrall: Human Rogue 2 Barbarian 1
HP: 27

STR: 16
DEX: 20
CON: 12
INT: 13
WIS: 10

Armour:
Mwk Studded Leather

Weapons:
Mwk Shortsword x2
Mwk Composite Shortbow +3

Feats:
Weapon Finesse
Two Weapon Fighting
Weapon Focus (Shortsword)
Flanking Foil

Special Abilities:
Rage
Evasion
Sneak Attack +1d6

I'm currently in a dungeon fighting kobolds, aiming to slay the Kobold King and my DM has plans beyond that, either into the follow on campaign or on a custom made campaign.

[Tangaroa]

It would be nice to be able to rage and use the sneak attack at the same time. Maybe dirty tricks?

Combat Expertise -> Improved Dirty Trick -> Quick Dirty Trick -> Greater Dirty Trick

It's a lot of feats though.

Another option:

Additional traits to take coherent rage (bluff) and another trait.

Take two weapon fighting feats, including two weapon feint, so you can sneak while raging.

[Thoron Entheart]

I think that Dirty tricks might be one way to go, but I'll wait to see what other people think. I'm not going to be levelling up for some time, so I have plenty of time to think about it.