You would probably want to buy the Evaluation Board which lets you control the machine using USB ports and an ASCII console.
The thing is, it's just a computer. The real value of this is hooking it to hardware to actually do something. So I suggest starting here instead: http://www.greenarraychips.com/home/documents/budget.html and learning how to work with hardware as well.
The thing is, it's just a computer. The real value of this is hooking it to hardware to actually do something. So I suggest starting here instead: http://www.greenarraychips.com/home/documents/budget.html and learning how to work with hardware as well.