Streaming audio from PC to a bluetooth phone

[martensite]

I just bought a Nokia 5610, and it's a prety slick phone. Now my question is: how can I stream audio from the PC to the 5610 via bluetooth so that I can plug a pair of wired headphones into the 5610 and use the 5610+headphones as a wireless headphone system to watch movies from the comfort of my bed.

Is it even possible?

I have a bluetooth USB adapter for the PC and the Nokia has built in BT.

Thanks for any advice.