International
http://www.futurlec.com/ -> international
farnell
mouser
digikey
http://www.smallbearelec.com/home.html
http://www.taydaelectronics.com -> very cheap pots and others, led holder,semis
http://www.changpuak.ch/electronics/index.php
http://www.goldmine-elec-products.com/searchprods.asp
tayda electronics