Hi, I need some help with my wireless setup at home. Here is my layout: I have a three story house. On the top floor: iBook (b/g), uMacbook (b/g/n) On the middle floor: Powerbook (b/g), uMacbook Pro (b/g/n/), PC (?) On the bottom floor: Powerbook (b/g), Mac mini (b/g) Here are my needs and reasons I want to change: Fastest internet and networking possible, obviously. Ability to have media files on an external hard drive and watch them from the computers on the network. Ability to backup wirelessly. I find my internet to be generally sluggish. My b/g network constantly fails and needs to be reset. My Time Capsule hard drive and attached hard drive frequently fail to be found (have to restart). Bittorrent clients are extremely slow. I feel like my wireless settings (dhcp/nat) are not configured well or optimally and want to start from scratch. I've re-done the settings many times. I have factory defaulted even and started again, but I feel like no matter what, there are always problems. Here is my present neworking situation: I have a cable internet modem (Videotron in Montreal) located on the bottom floor. I have a split ethernet wire connecting the modem to the mac mini and to an Airport Extreme Base Station (n) on the top floor. I have an old Airport Extreme (b/g) connected to it via ethernet cable on the same shelf. I have an ethernet cable running from the Airport Extreme (n) to a Time Capsule (n) on the middle floor. The Airport Extreme (n) and Time Capsule (n) are both creating the same wireless (5ghz) network. The Old Airport Extreme is creating a different wireless (b/g) network. I have a Lacie 1TB drive attached to the 500GB Time Capsule and a printer attached to the Airport Extreme (n) on the top floor. Conclusion - Help!: Assuming money is not an issue, what is the best thing for me to do? I was thinking of selling my Airports and Time Capsule and getting the new Time Capsule and Airport Extreme with dual band. Is my physical setup optimal? Should I move anything around / run new wires anywhere once I have someone coming to the house who can run the wires? Is there a certain type of wire thats best? Should/can I set up some sort of RAID thing? Is there a certain type of network configuration I should set up? I just need help please!! If you need any more info, just let me know. I really would appreciate any time you guys have, Thanks.