It will be cheaper for you to replace this stuff yourself than to battle with him over it. My guess is that part of the reason he took it was to draw you into negotiating to get it back.
I agree with Fandy--change the locks and go on with your life (including Al-Anon). Hit the yard sales or cheap furniture places or thrift shops if you need to, get the essentials, and enjoy the peace in your home. You can get better stuff as time goes on.