Mics Parts:

Tools [in order of importance]
needle nose pliers
small wire wrap tool
small glue gun
snipes
30-20 awg (gauge wire stripers

Parts:
Battery pack (provided)
Switches
Power Adapt [  DC Power Plug, Coaxial, 5.5mm x 2.1 mm]
USB Cables
header pins (rectangle not round)
9 volt batteries
30 gauge wire

Stores:
Digikey
Mouser
All Electronics
Sparkfun
Parallax
Radio Shack