SCM don't care about casting time or expensive components, right? Check out Dragon 309. In the 'Spells of War' section there are some spells that all have 1 minute+ casting time and usually expensive components.
But they're awesome. 150ft Obscuring Mist, 25 target Magic Missle, 60ft Fireball, 100ft by 20ft lightning bolt, 100ft Orb of Fire, 500 creature Blur, Summon Monster II (25 TIMES CASTER LEVEL amount of creatures, Mount (25 TIMES CASTER LEVEL amount), summon a 'Cheap Keep' from Strongholder's Guide.