Register for the Intro to Microcontrollers session at the Maker Weekend: Arduino and Microcontrollers (http://www.meetup.com/kalamazoo-makers-guild/events/136219732/) without buying the Arduino Experimenters Kit from Adafruit (http://www.adafruit.com/products/170). Only select this event if you already have all the components of the kit or if you will be buying it yourself and bringing it to the weekend. If you don't have the kit or components and would like get this kit without paying for shipping, then RSVP for the Register for Intro to Arduino Programming with Kit (http://www.meetup.com/kalamazoo-makers-guild/events/144738452/) to get in on the group buy.
If you have some of the components and just need to supplement your inventory with the other components you can view a breakdown of all the Adafruit kit in this spreadsheet (http://bit.ly/GNGBgH). You can still RSVP and participate if you don't have all the components, as long as you have the Arduino itself. You may not be able to follow along with all the examples if you are missing some pieces.