I have a T1 network with a Netscreen router to administer a domain network access to internet and internal network. I will be having several people in to do training in two different areas of the building and would like to add one or two wireless routers to give access outside of the internal network. All rooms are cat5 wired. Can I run another cat5 cable from the netscreen box to one of the rooms and put a wireless router in the room to give access to 8 to 10 wired and wireless users. Will the wireless router give them new IP addresses and can they use the same 192.168.1.xxx as the internal network? Does this new wire need to have a new gateway of like 192.168.1.2, Would the security be best by allowing only certain MAC addresses or will WPA2 be good enough? I need to purchase the equipment this weekend so I was looking at a Linksys WAP2000 router. Any ideas? Thanks for any help you might be able to give.