I'm looking for a wireless way of playing internet radio streams from my...

...laptop through to my Hifi. Any ideas? I'm specifically looking for a device that will plug into my 3.5mm jack output from my laptop and transfer it wirelessly to one of my auxiliary inputs from my hifi.

I've got a wireless Roku Soundbridge for all my MP3's and some live internet radio but the 'listen again' feature on internet radio streaming audio is a right pain to sort out.