Log Parser queries

Hello list,
our company has recently deployed Share Point Portal as an intranet solution, 
and we are currently working on opening a part of it to the internet. I am 
trying to set up a logging mechanism of IIS logs using MS Log Parser, and i 
would apreciate some pointers in the sense of interesting search strings, 
querys etc. I have been sifting the web looking for things i should pay 
attention to when logging, and have come up with some interesting things, but i 
need more before. I don't want to log everything, just want to set it up to log 
specific events but i am a bit blank as to what it is i should be looking out 
for (i'm fairly new to the whole thing of web log analysis)... any pointers 
would be greatly apriciated, literature, web articles, anything.
Thank you.

Nemanja Janic

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