I chose Lawful Neutral as my party alignment so that I could still be "good" and have more people join my party. Unfortunately, I've got a Paladin who usually scares away bad guys from joining.
As of now I have:
LG Human Paladin: 18 in STR, CHR, and WIS. Uses Greatsword. Ideal leader since he's diplomatic and his auras later on will benefit the party.
LN Dwarf Cleric: 18 in WIS and 20 in CON. His primary role is healer and I've stocked him with healing and buff spells. However, since he's got 20 CON, I usually have him as a backline fighter to defend my weaker members or as a damage absorber. I move him to the front ranks for his Turn Undead ability when fighting undead.
CG Half-Orc Fighter: 20 in STR, 18 in CON. I made a Fighter rather than a Barbarian so he could use the heavier armor. He's my main front rank fighter and I usually give him the first pick of the equipment.
TN Halfling Rogue: 18 in DEX, 16 in STR. A must have for any party. I usually keep her in the back ranks with a light crossbow. Later on, I plan to multiclass her into a fighter so that she can safely flank some enemies for some good backstabbing damage.
CG Elven Wizard: 18 in INT. I also chose and evoker and I'm picking the feats which maximize spell duration, area of effect, and damage. I mainly pump long-range damaging spells but I keep one or two summoning spells to help out the party when needed. She's the hardest to keep alive so far.
I've been doing the minor side quests and I've just started the moathouse. My party members are around second level (a few verging on third) and I plan to get into some random encounters before venturing onward into the Moathouse.
The Paladin and Half-Orc fighter hold their own but they have limited roles. My Dwarf Cleric is a keeper and I'm considering multiclassing him with a few fighter ranks since he's been doing so good at melee. My Halfling Rogue is mainly a range fighter but I plan to get her a few fighter ranks for that backstab ability. As of right now, my Elven Wizard is the hardest to keep alive and the most useless (after her spells have run dry).
Any suggestions on how to supplement a better spell caster?