Here's a few of my favorite surplus suppliers:
http://www.allelectronics.com/
http://www.youngssurplus.com/
http://www.meci.com/
http://www.mouser.com/index.cfm?handler=home
http://www.mpja.com/
http://www.oatleyelectronics.com/
http://www.herbach.com/
http://www.surpluscenter.com/electric.asp?UID=2004052612551121&catname=electric
http://www.electronicsurplus.com/commerce/index.jsp?czuid=1084313536338
http://www.candhsales.biz/CandH/index.htm
http://www.powerstream.com/surplus.htm
http://www.allelectronics.com/
http://www.youngssurplus.com/
http://www.meci.com/
http://www.mouser.com/index.cfm?handler=home
http://www.mpja.com/
http://www.oatleyelectronics.com/
http://www.herbach.com/
http://www.surpluscenter.com/electric.asp?UID=2004052612551121&catname=electric
http://www.electronicsurplus.com/commerce/index.jsp?czuid=1084313536338
http://www.candhsales.biz/CandH/index.htm
http://www.powerstream.com/surplus.htm