Digi-Key Part #  (http://www.digikey.com)               Price Each

X143-ND		CRYSTAL 16.00MHZ 20PF HC-49/UA		0.36000
1013PHCT-ND	CAP 100V 18PF AXIAL CERAMIC C0G		0.18500
296-1974-5-ND	IC POS VOLT REG 5V 1.5A TO-220		0.39000
ATMEGA32-16PI-ND   IC AVR MCU 32K 16MHZ IND 40-DIP      8.28000
EG1903-ND	SWITCH SLIDE SPDT 30V.2A PC MNT		0.64 

optional:
ATAVRISP-ND	PROGRAMMER AVR IN SYSTEM		29.00000

note:
The 16 MHz crystal is designed to work with 20pF capacitors, but at this
time, digikey carries no through-hole 20 pF, so 18pF was
substituted.  You can hear Simon's spider senses tingling!