I want a network 2 computers in my house one downstairs and one in my room. the main use of this network would be using the internet and i was woundering if those bluetooth dongles i think they are called woudl be a good idea. i just wanted something quite cheap, and above all else something that woudn't invlove pulling up floor boards. i if people think it is a good idea do i just need 2 of these things one in each machine to get this network up and running?