I'm about to buy an Acer Aspire One from Craigslist.

Another listing on Craigslist is selling the same machine with 10.5.Something on it. (He said 10.6.? is not as stable) I emailed him and he said he can do the install for $20 where everything on the machine is usuable (Wi-Fi, Sound, Camera, and SD slot)

A) I don't have an extra $20
2) I'm two cheap
III) He lives on the far end of the next county

The main things I want is the Wi-Fi, and USB. The rest is luxuries that I would like to see, but if I save the $, I'd live without.

EXACTLY what do I need?