Personal Finance Books

here are the parts.
Computer in bedroom has movies, pics and music on it. I want to be able to stream the movies and pics to my HDTV in the living room(unreachable with wires) and the music to the reciever for the speakers in celing which is in the Kitchen. I also want to be able to stream the sound from the HDTV to the receiver in the kitchen.
-What hardware/software should I use? I want to do this on a budget too.
Ultimately I want to have a media center pc for the living room which i will be building slowly,but for now i have to deal with this

SO, again
How do I stream the sound to the reciever in the kitchen from my pc, in the bedroom, and the HDTV in the living room?
and
how do i stream the movies, pics etc to the hdtv in the living room
ALL ON A BUDGET

Thank you