I worked some in Excel and created a kind of Calculator for your dmg.
You can change your own ATK skill and see how many Attack Points(AP) you get with what weapon.
I think it is quite easy to understand, if you got questions, just ask.
Excel file: http://www.speedyshare.com/421472717.html
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Started to work on a small tool, which basically does the same but as an application. :D
22 weapons added so far.
Ok, I'm finished.
Bin+src file: http://www.speedyshare.com/695376641.html