^^ Quite similar to what I'm thinking, and my load out in terms of classes (but I went all human bar one mino fighter - only for role playing reasons, though

). And I've just cleared the slime about 45 minutes ago too
I'm liking the power of assassin/dagger rogues, but it's a bit situational (i.e. it's only it's best when you can backstab - I've not managed a spider backstab yet!).
What are you speccing your mage in? I went earth/ice/spellcraft, thinking as follows: i) those two schools actually give useful skill bonuses for a mage, ii) there seems to be a lot of poison/disease, so poison resist/shield should come in handy, and iii) I only need go to 13 or so in earth to get poison shield, and then I can max ice/s'craft so I'm hoping I won't overly suffer by having three specialisms.
We'll see, I guess...