Reply to Building A Studio. Help.

Hey All.
So! ITS TIME! Were building a studio in our garage. The room is going to be about 10 by 11.
Were producing EDM. Computer + Monitors.
We need to order all of the materials this week. We are building a room inside of the garage, and basically no sound can exit, as the kitchen is just next door.
Keep in mind: The walls of the garage are about 6 inch concrete beasts.

Willing to spend around 4-5k.
So we need :

Outer layer
Insolation ( Acoustic Insolation? Help? )
Inner layer
(Another insolation layer)
Most inner layer
Then what is the best material to put on the walls? Need to sound good. The mixes are being sent straight to label's so its important.

Any questions which you guys need to be answered for more info please ask away.
Thanks for any and all the help.
Jed.