Need to set up a wireless connection (about 250 metres)

[i know nothing]

I can't get ADSL where I live (long story, suffice to say I live overseas...).

Someone I know who lives approx. 250 metres away has it. He has offered to share his connection with me, but I must provide all the necessary kit. There is nothing but houses between mine and his (land is flat), no mountains etc.!

What do I need?

He has a home network set up at his and he runs WinXP, I have a standalone desktop PC that runs Win7. Not sure what other info I need to provide. Really looking for something simple to set up...

 

[i know nothing]

Without climbing onto the roof I can't say for certain, but I highly doubt I would get 'line of sight' without some sort of obstacle like a house or tree in the way.

What sort of kit do businesses (like Starbuck's) use that have wi-fi? Would that do it?