Surrender yourself to Instructables.com. A page where you will find loads upon loads of DIY stuff.

There is even a music category, in which you can find all the advice you need in order to build your very own recording studio (without wanting to aim a gun at yourself). Seriously. A great way to make your tiny livingroom into acoustics paradise / Moby-wannabe studio.

Have fun.

Go here and start checking it out.
http://www.instructables.com/id/Build_a_music_studio_in_an_apartment_building/