Watch the hype....
The Replcator 2 is "easy-to-use" and compatible with many popular 3D CAD software programs (Design 123D, Solidworks, anything that output a OBJ or STL ).
RTFM! Read me first! The Manauls only covers the start of using this resource. Training needs to be completed before access is granted.
Use Makerware here (Win7, Mac, or Linux) or other software to "slice" STL files.
Slicing is the way to control quality, print time, and amount of material used. Choice of appropriate slicing parameters is the difference between a successful print and a pile of spaghetti. The slicer is what turns an STL file into G-code — that tell the printer where to move the print head and when to extrude plastic. The output is a X3G file that you will put on a SD card and insert into the machine.