IMO, which is not expert though I do have a 60 alc, concentrate on sta/wis at least at the start. At higher level when you need to nuke more outside of throwing pots pump some dex. Stamina obviously will give you more HP whcih is important for an alc both for taking hits and being able to chain draughts. Wisdom mods your Potion damage, so its important. Dex mods you nuke spells, important down the line especially with ZP spells. Intelligence can be basically ignore in the beginning. Since you low level draughts don't tick very high you will want low power. Your potions use 10% of your total power regardless of how much power you have, and its easy to refill a smaller powerpool. Int, however does modify your draughts effectiveness to a small extent so higher int will make a draught work better, but there will be a fine line btwn haviing a good draught and having too much power. Power can also be important if you nuke a lot on top of throwing pots. Agility can also be important if you plan to tank at all, since it acts almost as a natural AC.
As for cms, its personal preference, I don't cm much at the beginning. I don't even really start until 25 to 30. For instance my necromancer had 400 cms when I dinged 60. You can reset training points and cms at the rehabilitators outside of Freeport, runnyeye and Darver Manor. Not sure if there are any others. So, if you ever don't like how you built your toon you can rehab as many times as you like for free.
Hope that helps. Good luck.
Edited, Jan 29th 2011 9:27pm by BoomstickSaint