I included a diagram of basically how my networking is set up. I need help on the following: 1. Is the Wireless network Model good enough? 2. As you can see I have one network cable to my office but need to hook up three computers. I tried Network device that allowed 4 connections but cannot share files with PC at Living Room 1 and printer. What device is good using one cable be able to recognize the other computers? I heard switch can do this but I see it requires two cables? 3. I dont know anything about programming my Wireless unit and new one I will get for my office, so how do I know my settings (left at default) are optimize for my situation and secure (what to create log in and pass or create a pass to access wireless?) 4. Whats 10/100/1000 that I see? I know this seems redundant since I see other post but I dont understand the language of networking at all. Thank You for the advice and dont hesitate to post models you recommend. RM.