Originally Posted by
JaronK
My advice to the OP: the group is having fun already. Wizards aren't overpowered in their group (probably because no one's using them in overpowered ways) and that's a good thing... no sense introducing what they can do and creating a power arms race. You might as well just play characters in their power band and enjoy it. You don't need high numbers to have fun, nor do you need world shattering power to roleplay decent party dynamics and all that. Would it really improve the game to raise armies of intelligent undead and consume the world? That doesn't sound like the kind of game your group wants to play.
JaronK