I'm a Mac, my wife is a PC. (although I look more like the PC guy). I would like to buy an Airport Extreme Base Station, but I notice in the specs that it works with Windows XP or Vista. Her PC is running Win2KPro - I'v never wanted to upgrade, hoping that someday she'll make the switch. Two questions - Will the Extreme work with Win2KPro? If not, any idea what would happen if I tried to run both WiFi units in the same house?