Thanee
First Post
Pick the nastiest of the mindless undead with command undead (PHB 3.5 wizard spell) and let them fight each other. 
Undeath to death (PHB 3.5 wizard spell) is a pretty good spell as well.
Shroud of undeath (PGtF / MoF wizard spell) can be very helpful, too.
Against vampires, empowered or maximized searing light (PHB 3.5 cleric spell) is great, but you'll have to deal with finding them while they are recovering, once they flee in gaseous form.
Bye
Thanee

Undeath to death (PHB 3.5 wizard spell) is a pretty good spell as well.
Shroud of undeath (PGtF / MoF wizard spell) can be very helpful, too.
Against vampires, empowered or maximized searing light (PHB 3.5 cleric spell) is great, but you'll have to deal with finding them while they are recovering, once they flee in gaseous form.
Bye
Thanee