Hi all my business & home premises are next to each other my son and myself have set up a wireless broadband network. We only share modem access via a firewalled router. The distance covered is aprox 80M we have used the older more reliable b type, I believe the g type still has some reliability issues. The only problems we had were overcome by buying more powerful antenna.The one thing I learnt is that most of this technology is trial and error no enviroment is the same we had the wireless access in the loft carpeted a bedroom below and we lost signal (it was not lead carpet).Ask questions and experiment.(dont bother asking questions at PC world anymore technical than where are the toilets!!!