I am a new user. I am going to buy an Airport Extreme in my renting house which has 4 people live together. My computer is macbookpro 896 with 2 systems(leopard & vista), their computers are windows systems. My questions: -If I buy an Airport Extreme, can windows system connect to internet? -I want to buy a 1TB ext-Hdriver connecting to Airport Extreme as a lan hard driver so that we can share files together. Is any problems with my idea? -If I format hard driver as HFS+, can windows identify the HD? -Is there any speed different between 802.11n draft and 802.11g in practical application? Can vista use 802.11n? -It is said Airport Extreme support 2.4Ghz and 5Ghz, can windows xp or vista use 5Ghz? Thanks for any help with the above questions.