In Act 1 I put my skill pts only into bow => acc and critical hit for combat against Fergie, DK etc. In the Citadel I put 2 pts into pp. I always kept 1-2 skill pts free, so I could add if I wanted a BF item badly. Wait, I'll look how my skills were at end of Act 1 and then edit my post.
Kiya
http://www.kiya1.de/beyond/act2screens/Act2stats0.jpgI think point blank was a waste - but you can see clearly here, my int was on 1 - so, I had not started to give her mana ability. this screenies is right outside the Citadel exit.
http://www.kiya1.de/beyond/act3screens/Act3stats0.jpgThis is at the beginning of Act 3. I have started to build her up as a hammer mage. Pts are on 2, not more, I maxed that out to 5 in Act 4
http://www.kiya1.de/beyond/act4screens/Act4stats0.jpgThis is at the beginning of Act 4. PP on 4, hammer on 4 - the other 2 spells were just for experiments => lightning on 2, meteor on 1. I didn't know what to do with my skill pts - and you see, I had still 3 left.Hammer on 4 only needs 200 mana, so this was sufficient for me.
http://www.kiya1.de/beyond/act4screens/Act4Endstats0.jpgmy endstats, getting ready to fight the endboss. I still had my bow skills, no melee, but had added Ethereal magic age objects on 5. I wanted to see, how my char will survive without any sword skills and see how much impact age objects had. I used hammer (still on 4, didn't max out, was too lazy, though I had a skill pt free). Was too lazy to remove lightning and meteor.