Can someone please tell me how to install objdump in OS X Snow Leopard?

I have tried to use Macports, but the native and elf ports of bintools keep erroring out and I am very lost and confused at this point.

I really want to do my work in OS X instead of linux. I know that otool is an option, but this is for classwork and I'd much rather use the tool that the professor is using and that's objdump.

Please point me in the right direction if you can.