ITU PIC-1: http://www.itutech.com/
David Tait's PIC Resources:
http://www.man.ac.uk/~mbhstdj/piclinks.html
HOPCO Programmer: http://www.hopco.com/
DigiKey: http://www.digikey.com/
Microchip: http://www.microchip.com/
DonTronics: http://www.dontronics.com/
MicroEngineering: http://www.melabs.com/