I just made a zerker and would like to know some advice anyone could give me. I read the essay and would like some more imput, I already have my path and all picked out (rp reason than pk strength) so nothing along those lines, just gerneral advice about pk and such.
Thanks
Master everything. Cleaves, defenses, weapons, haymaker, headbutt, bodyslam. All of it.
Learn EQ, and learn it well. You want a good balance of saves and hit/dam. Your biggest enemy is going to be evil clerics and shamans, so get maledictive and mental saves. Invokers, if you're smart, you should rip through fairly easily, so don't really focus on afflictive.
If this is your first berserker, stop caring about lives, because you're going to lose a lot of them. Don't get angry or quit out when you're killed. Go and re-equip, and get back in order. Battle with a berserker takes a lot of trial and error, which in turn, usually involves a lot of failure. So get used to it.
Definately master things. Battles as a Zerk are hard and fast and you really can't afford to be missing your critical skills there. As far as EQ I'd agree with D_D except if you're really decked out in hit/dam gear, you may sometimes be able to just go all-out damage, even against casters. Even moreso if your a magic res race. That only works effectively if you're truly decked out in tops hit/dam though, and against certain foes. 
Dey
Q vial
enlarge
surprise victim
bodyslam
rage
bodyslam
bodyslam
bodyslam
bodyslam
bodyslam
get all
drop all
sac all
Now realy, use a heavy polearm and bashlock non protective classes, mages you need to dual wield and hit vulnerability.
does berserk go up when you are in it like rage? Or will I have to use it over and over?
From Pali's Tome of Ambiguous Wisdom:
"Don't die a lot."
Q vial
enlarge
surprise victim
bodyslam
rage
bodyslam
bodyslam
bodyslam
bodyslam
bodyslam
get all
drop all
sac all
Now realy, use a heavy polearm and bashlock non protective classes, mages you need to dual wield and hit vulnerability.
Although that should work theoritically, I can 100% guarantee that your battles will not go like that all the time.
Dey
Don't bother mastering anything (unless it can be done while you are ranking) and don't sweat the deaths. You will save time and enjoy the game a lot more.
Learn rage, when to and when not to. Had a bunch of times where I figured I could just rage and bslam, then got my face handed to me on a platter. Freaking DKs with their three defenses.
They were a total pain to play against any warrior when they didn't have staff yet. Good luck. 
And warriors with a gazillion defenses..and rangers..
Edit due to above post, still owned by warriors and rangers. And yes, good luck!
