32-point Horc evasion TWF DPS/hate tank, and only requires one +1 tome by level 9:

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Level 20 Chaotic Good Half-Orc Female
(18 Barbarian \ 2 Rogue) 
Hit Points: 310
Spell Points: 0 
BAB: 19\19\24\29\29
Fortitude: 13
Reflex: 12
Will: 5

                  Starting          Feat/Enhancement
Abilities        Base Stats          Modified Stats
(32 Point)       (Level 1)             (Level 20)
Strength             18                    23
Dexterity            16                    17
Constitution         14                    14
Intelligence         12                    12
Wisdom                8                     8
Charisma              6                     6

Tomes Used
+1 Tome of Dexterity used at level 7

                  Starting          Feat/Enhancement
                 Base Skills         Modified Skills
Skills           (Level 1)            (Level 20)
Balance               3                     3
Bluff                -2                    -2
Concentration         2                     2
Diplomacy            -2                    -2
Disable Device        n/a                   n/a
Haggle               -2                    -2
Heal                 -1                    -1
Hide                  3                     3
Intimidate           -2                    -2
Jump                  4                     6
Listen               -1                    -1
Move Silently         3                     3
Open Lock             n/a                   n/a
Perform              n/a                   n/a
Repair                1                     1
Search                1                     1
Spot                 -1                    -1
Swim                  4                     6
Tumble                n/a                   n/a
Use Magic Device     n/a                   n/a

Level 1 (Rogue)
Feat: (Selected) Power Attack


Level 2 (Barbarian)


Level 3 (Barbarian)
Feat: (Selected) Cleave


Level 4 (Barbarian)


Level 5 (Barbarian)


Level 6 (Barbarian)
Feat: (Selected) Two Weapon Fighting


Level 7 (Barbarian)


Level 8 (Barbarian)


Level 9 (Barbarian)
Feat: (Selected) Improved Two Weapon Fighting


Level 10 (Barbarian)


Level 11 (Rogue)


Level 12 (Barbarian)
Feat: (Selected) Improved Critical: Piercing Weapons


Level 13 (Barbarian)


Level 14 (Barbarian)


Level 15 (Barbarian)
Feat: (Selected) Greater Two Weapon Fighting


Level 16 (Barbarian)


Level 17 (Barbarian)


Level 18 (Barbarian)
Feat: (Selected) Toughness


Level 19 (Barbarian)


Level 20 (Barbarian)
FAQ:

Why TWF on an horc?

-TWF is still better DPS than THF
-On a raging barbarian, the few extra points from racial bonuses are relatively small
-The inherent STR bonuses put them on par with other races using racial weapons without being so restricted

Why 2 rogue?

-Unless you are going THF, the Barbarian capstone is simply inferior to evasion
-TWF requires significant DEX, allowing evasion to work
-1d6 + 3 SA is situationally better than +4 STR

Why piercing?

The choice was between piercing and slashing, for rapier or scimitar, respectively, but piercing also applies to Deathnips; I may actually have IC: Slashing at first, depending on whether I find better scimitars or rapiers, but I will eventually have IC: Piercing.

Why no Khopesh?

I know this is heresy, but it would be a waste of a feat on this build.

What skills?

I don't like to list skills, since most people have different (but still valid) opinions on skill distribution; I will be maxing UMD, Open Lock, and Intimidate, but I can easily see someone choosing Balance or Spot, or even dumping INT for those 2 extra STR points.