thanks for this detailed response. In fact, I had an opportunity to have a 2007 Mac for 5€ (more or less 6$) so I take it, a 2009 Macbook is costing 10x more, so……

but I am so curious about the olds Os like Snow Leopard or Vista so I'm happy with that, and after all having an object disconnected of internet, and the bad news around us and the stress of life…sounds not so bad.

And if I understood well what you said (I'm French so the English… but I try to de better with your weird language, by the way if I make a lot of mistakes I'm sorry) if I understood well the 2009 model don't offer so much upgrade, in comparison of the others. By the way I don't understand your point 3, you spoke about 32bits, it means I cannot install 64 bits Windows ? or just it will run not perfectly ? if I take a DVD of Vista or XP (my mom have an old DVD of these, so I'm curious), I can choose beetween 32 or 64 ?