Here is a 200 point (well 197) point war band for tournaments that I've found very successful:
1 Red Wizard (Cmdr3) - R63
2 Duergar Warrior - U8
4 Cultist of the Dragon - C116
1 Nothic - U10
By having the Red Wizard as your commander, it allows you to include the Cultists in your warband and also adds 5 damage to each of their spells. By keeping the Nothic and Duergars upfront for protection with the spellcasters behind them, you have ample room to cast spells from afar with the Cultists and allows the Red Wizard to cast his fireball if need be. =)
By keeping this as a tight group, this warband has so far defeated those warbands that have challenged it. Enjoy!
I really like this idea, I'm going to try substituting 2 Cultists for 2 Drider Sorcerers, only one more point each and you can cast Lightning Bolt instead of the range 6 fire orb. Just an idea, all I need is the Driders ^^