Here is my "minimal" party composition and skill selection:
Fighter/Ranger: 12 Str, 18 Dex, 35 Life - Skill choice Axe
Fighter/Ranger: 8 Str, 21 Dex, 40 Life - Skill choice Bow
Fighter/Thief: 10 Str, 20 Dex, 35 Life - Skill choices Spear, Search
Fighter/Thief: 10 Str, 20 Dex, 35 Life - Skill choices Spear, Haggle
Fighter/Priest: 10 Str, 16 Dex, 35 Life - Skill choices Mace, Karma
Fighter/Priest: 12 Str, 14 Dex, 35 Life - Skill choices Sword, Karma. Armed with the +2 Broadsword you get for saving the girl from the thugs
Fighter/Sorcerer: 8 Str, 14 Dex, 35 Life - Skill choices Bow, Cast Spell, Power
Fighter/Sorcerer: 10 Str, 12 Dex, 35 Life - Skill choices Crossbow, Evaluate