I have a cable internet connection in bldg 1 where we have a wirelss internet connection (on a linksys wrt54g)set up for our customers for free public access. I have another computer in bldg2 which is about 600 feet away with clear access no trees nothing. I cannot run cable underground or on telephone poles I want to use the wireless internet connection for bldg2 so my big question is how can I expand my wireless signal to reach bldg 2 and be strong ?? What routers do you recommend to upgrade my existing router? Should I go to the new N technology ? Also what antennas do you recommend?Thanks for your help and input ahead of time !!