Airtunes emulator - is Airfoil only game in town?

[srexy]

I've got an tv and an Airport Express fed by iTunes on my Mini which is hooked up to the HT setup. However I still have a Macbook Pro and an iMac gagging to do double duty as airtunes speakers. Are there any other emulators besides Airfoil?

Thanks

 

[rKunda]

I searched for ages and could find none. FWIW, Airfoil works great and I am really glad I bought it.