http://db.gamefaqs.com/computer/dosw...rs_gate_ii.txt (you need to type this in manually or it is blocked.) For the good/bad tear thingy it tells you IIRC.
As for the dual classing, im not sure what you mean by "fighter maximised then dualled" but reckon that the active class will gain the bonus. Then once it has dualled, I bet that the mage part will get the +1 int bonus.
Gnomes get a bonus to their intelligence but suffer a penalty to their wisdom. This can be used to good effect because, unlike ALL other races, they can obtain 19 int NATURALLY without POTIONS and without BG1 and any other enhancing items (i just know someone will come along and that im wrong lol i usually am). This means that they can learn unlimited number of spells per level, 95% scribing from scrolls, +12 lore score bonus.
Opposition school of illusion is necromancy (i think) This is what has put me off playing a magical gnome as you will be missing out on great spells such as: animate dead, skull trap, Abi Dalzim's Horrid Wiltings, death spell (vital for clearing out hordes of annoying kobold etc!), finger of death (THE dragon killing spell of cheese!) and the wail of the banshee (not as spectacular). But you will get the extra spells, however much consolation that is to you it is not enough for me!
The opposition school for illusionist