wireless speakers

This is my first time here so hi to all.Where I live now I can't listen to my favorite radio station on radio but I can get it on my computer.The problem is that my machine is in one corner of the house and my living room is on the other side.I have XP on the machine and also have a router so a laptop can be used without having a direct hookup.Is there a way to use wireless speakers to listen to my computer so I can move the speakers anywhere I want in my house?I need to be cheap,I don't have money to do anything expensive.Thank you,

On Newegg I found a few speakers, with 150' range, starting at like $80.