GB IWD2 walkthrough

[Azer]

I've been wondering about those things that GB's walkthrough doesn't cover, for example that snowman at barbarian puzzle. I thought that I hadn't found all those nifty secrets of this game, but when I read that "official" walkthrough at Interplay's site (Interplay Entertainment Corp.) which covers all the game through with all secrets, I knew I had found evrything. So could someone read through that and correct and add all those things to GB's walkthrough?
And yes, I know this post was the most illogical post you have ever read ;)

[Jelaweb]

There are a few of things I noticed about the goblin warrens:

1) Level 1: DON'T kill the goblins - when you enter level 2, you get more XP (for sneaking past all "outposts" without raising the alarm)
2) Level 1: Get the most XP from Pondmuk - 1 spider, then the spider queen, then any remaining spiders (which you'll need to drop beforehand)
3) Level 2: You can kill Yqoug after the quest - he shouldn't appear in Severed Hand.

Underdark (Oin'chakolp's Stone quest): kill him, he drops the Mercykillers Belt, so you can also keep the Stone (useful for Monk/divine casters, until you get Every God Ring)!

Drider Cave: Transmuters can create another potion in Imphraili's lab.

Cannot be bothered reading the rest for the moment...