1 x ATMega8: LINK eBay
1 x 16MHz crystal: LINK eBay
2 x 22pF capacitor: LINK eBay
2 x 10uF capacitor: LINK eBay
1 x 10K resistor: LINK eBay
1 x FTDI module: LINK eBay
1 x Arduino UNO: LINK eBay
Wire, soldering iron, solder, etc...