I want to log the data of a positive lead, and a negative lead and record this data to a file. I want to get the pattern that the light goes on and off. Does anyone know what equipment I need to do this?

I plan on taking this data, and using Adrurino or phigets to recreate the pattern with a LED.

You might be able to use the GPIO pins on the Raspberry Pi if you can get your hands on one.

Thank you!

or maybe you could make use of an rc flight / voltage logger?

http://www.hobbyking.com/hobby ... ealth_Analyzer_1_6S_.html

worth searching for similar ones with usb etc...

Although I'm sure you would have a lot of fun with a Raspberry Pi, AFAIK it doesn't have an ADC so unless the voltage on the leads is 3V3, it won't work. I once played around with an Atmel ATMega16 based board and we used its ADC to read analog inputs and do stuff with it like lighting a LED up or down.
I'm not sure if the board was some handcrafted thing, but a lot of parts came from Olimex.