Didgekim

Hello all, Just bought the game and have a few questions I couldn't answer by reading the forum : 1/ How do the stats affect the game mechanics (eg how much can you carry with a given strength? damage calculation? etc.) --> I ask this because I can't seem to make the right choices when spending xp 2/ Spells upgrades : i read they are worthless, but what do they do? 3/intelligence vs spellcraft vs magery : both are supposed to improve magic, but how exactly? 4/ editor : i understand that shift+D lauches the editor : is there a command list somewhere? Thx all, Didgekim