Hmm if you want to be a polethrower, you can do an almost-specific build based on throwing lances. Just get 7 or 8 ps, rest in athletics and power strike and carry 4 throwing lances. Throwing lance is a pretty good melee weapon, very similiar to a spear. Of course it will be very different than a great long bardiche, so that is if you want to depend on throwing mostly. You'll basicly have 3 lances to throw and 1 lance to fight with. As long as you see a polearm on the ground, you can pick it up and throw your last lance too.
But if you really want to use a long bardiche, and throw some shit during the process; just go with the build you used and add some throwing potential to it. For example if you used a 24-15 build and liked it, make it something like 21-15 and add the required stats for throwing (power throw and some more weapon master). That'll be very fun too
Just check the formula of wpf and powerthrow in this guide:
http://forum.meleegaming.com/guides/the-art-of-throwing-ii/
