The End Records online distro has some pretty good prices for a few of the Nightingale discs.
CC - $9.16 USD
TBS - $9.55 USD
AA - $7.79 USD
http://www.theomegaorder.com/s.nl?sc=2&category=&search=Nightingale
CC - $9.16 USD
TBS - $9.55 USD
AA - $7.79 USD
http://www.theomegaorder.com/s.nl?sc=2&category=&search=Nightingale