RPizeBox + Soundblaster Play!

I hated the fluttery background noises on the standard analogue audio jack on the RPi, so bought a Soubdblaster Play! for £20 from eBay.

http://elinux.org/RPi_VerifiedPeripherals#Class_compliant_USB_sound_cards said:

edit /etc/modprobe.d/alsa-base.conf and comment out the last line; options snd-usb-audio index=-2

I actually commented out all the extra lines that ended -2 and now I have excellent quality audio.  Really pleased.  The RPiBox is complete.  Wires for the GPIO and an improved larger screen have arrived.  I just need to find a container.