High Saving Throw build

[Frostrelex]

This is a build I am making for the heck of it. I admit I really don't know much about the game, so I am asking your advice in the hopes I could learn from you. I am not trying to make an uber build, just one that can do it's job of DPS adequately on teams while fitting within my concept framework-namely, of a barbarian with unusually high saving throws.

Halfling
Strength 16
Dex 16
Con 16
Int 8
Cha 8
Wis 8

Feats- Two-handed fighting, Improved two-handed fighting, cleave, power attack, Iron Will, Lightning reflexes

enhancements:

Damage Boost 4: 10 AP
Extend Rage 4: 10 AP
Power Rage 4: 10 AP
Extra Rage 3: 6 AP
Power Attack 3: 6 AP
Barbarian Constitution 2: 6 AP
Barbarian Willpower 1: 1 AP
Improved Damage Reduction 2: 6 AP
Sprint Boost 1: 1 AP
Item Defense 1: 1AP
Halfling Will 3: 6 AP
Halfling reflex 2: 3 AP
Halfling Fear 2: 3 AP
Halfling Fort 1: 1AP
Frenzy Beserker 3: 8 AP
Barbarian Might (capstone): 2AP

Again, I would like to point out this is not supposed to be a super build. Just adequate. I don't know much and would appreciate your insight. I was thinking that all levels of toughness are so outright necessary that I would need to drop all of the halfling saving throw powers to fit them in, and, consequently, destroy any reason for the build. I would prefer to not have to do that. Thoughts?