For start:

http://store.intrada.com/
http://www.varesesarabande.com/
http://www.screenarchives.com/
http://www.moviemusic.com/

althazan, June 20, 2009; 7:01 AM

http://www.soundtrackcorner.de/
http://www.tarantula-records.de/
http://www.arksquare.net/index_main.html

philkws, June 20, 2009; 7:36 AM

http://www.intermezzomedia.com

s.tonkens, June 20, 2009; 7:50 AM

http://www.soundtrackmaniac.com/

solfataris, June 20, 2009; 11:44 AM

I guess, the soundtrack for Shopping has never been officially released. ;)

coma, June 22, 2009; 1:34 PM