i met this guy online. he has this 2.4 GHZ macbook to sell that he bought last november from australia. 1.He has the money receipt. 2.Its not the unibody one. its the white one. HE asked for $1230. With the same amount i can get a new 2.0 GHz white mac. should i go for his offer? this is my first mac by the way. My question is what is there to "inspect" to buy a 2ndhand Mac. like in PC..i just do "Dxdiag"...to know about the whole machine.. how can i chk its date,hardware info....and what other things to watchout for.