That Link is ideal for what you need...It is a wireless Access Point.... Meaning you could Daisy Chain it to your switch to provide a combo Wired / Wireless network. Beware it only has 1 Cat5 ethernet port on the back [input]
It is not a Cable Modem Combo though... You will have to do some more looking to find that, just look on the linksys web site [listed below] and search through the wireless access points and you should be able to find a broadband modem combo.. but that wouldnt be right for you since the access points only have 1 cat5 input and no other outputs other than wireless.
http://www.linksys.c...FVisitorWrapperOn the security issue you replied about I wasn't referring to someone setting outside your house with a laptop and another wireless card accessing your network that way... I was referring to the not so honest persons who roam the servers looking for open ports and unprotected or unblocked ip addresses - they can be anywhere in the world as long as they have an internet connection. They normally dont just do malicious stuff like that for fun (unless they are juveniles) but instead are looking for ways to make money... (identity theft, credit card frauds, Software theft... that kind of stuff)
Range issue - Yes, with the linksys equipment, one of the settings in the web based browser setup, under wireless security, is a setting called RADIUS - that refers to a distance of accessability.