Master Wong's and Suicide Girl's guides are very nice so I'd check those out if I were you.
I'll try to help you from what I've learned.
I prefer keeping your magical balance at least 80% but less than 90% naked. As a spear user, your going to need all the HP you can get. I was 2:1 until lvl 38. I decided to all int up to lvl 42 so I could farm easier.
Be sure to get Ice Passive and of course Heuksal passives. More hp and phys defense to compensate for the lack of a shield.
Your nukes will suck ass when you first get them. But at 42, you will notice them getting getting stronger.
If you go 2:1, you will suck in pvp from lvls 42-70, unless you have some nice gears.
Yea Insomnia sucks
Free yo mind and yo ass will follow - George Clinton