Help with networking

Hi everyone, this is my first post.

I am quite new to networking and i have a small problem.

Im my home i have a network of three computers, they are all connected just using a small 5 port hub.

We have broadband shared throughout the network.

The problem is that how would i be able to add another computer/s to the network, where these computers are at different locations.

The maximum these computers away are 700m.

I have looked into Wireless netowrking, but the raneg on this is too short.

I really do hope somone will be able to help me.

Any help that is given will be GREATLY appreciated.

Michael

You want to add computers to your LAN that are not in your house/office? I don't think that is safe

But you could run a very long Ethernet cord from the hub to the machine OR setup a wireless LAN with a couple access points to push the signal as far as you need it to go (but this will only work if your computers are in the same building)

I have been told i can use RAS to connect to the computers outside of the network.

Yes i want to add then from outside my network.

IS RAS safe and how woudl i set up this?

Thanks