SuperNewb:
What transistor will I need to get and could you recommend what thread to read on regard to the software aspect of this? Keep in mind i'm a total newb and need step by babystep guidance
Transistor type is determined by the relay type used. Software will be apparent as you learn to program the arduino, there are lots of simple example sketches you can load from the IDE and read to learn what all the commands do and how to use them.
Perhaps the tutorials would be a good place for you to start: http://arduino.cc/en/Tutorial/Foundations
Lefty