I would suggest aswell to make 21str build at first. It gives you much better moving capability what will save you alot.
Level 30 (4 420 577 xp)
Strength: 21
Agility: 15
Skills to attributes: 2
Ironflesh: 5
Power Strike: 7
Athletics: 5
Power Throw: 7
Weapon Master: 5
Two Handed: 85
Throwing: 130
This one quite dedicated thrower build, which is very entertaining.
Level 30 (4 420 577 xp)
Strength: 21
Agility: 18
Skills to attributes: 8
Power Strike: 4
Athletics: 6
Power Throw: 7
Weapon Master: 6
Sidearm: 50
Throwing: 150