Check out the common part libraries released by Octopart / Seeed , and consider getting a resistor / cap library from your neighbors at Adafruit. Hackerspaces c

Check out the common part libraries released by Octopart / Seeed , and consider getting a resistor / cap library from your neighbors at Adafruit. Hackerspaces can be good resources for spare parts (and finding potential partners). You're in luck: prototyping is mostly software:)