Replying to Wi-fi sound system, help?

I just got a new sound system in my room and i want to hook my computer up to it. From what i've heard i can get the best quality by hooking my reciever up to my wi-fi system. Has anyone done this or anything like this? Any tips or other ways to channel my computer's sound through the speakers. I have a sony str dh-100 reciever with plenty of free channels. I don't really know how to go about what i want to do so any advice would be greatly appreciated