can i rebind '~' to something else?

http://www.tribalwar.com/forums/images/icons/uicon9.gif ?

No, Atleast not that I know of.

Console.cs maybe?

i want to rebind my penis to my mouse. :browsmile

oh those were the days :(

anyone know the name of the command when ~ is pushed?

I think you can bind the ~ console key to something else using newopts and/or newinterface. I'm pretty sure you can disable it, and possibly change the key.
.. ok, just looked real quick, and you can disable it with newinterface, dunno about changing the key though.