This is pretty pretty cool, if you’re into wireless storage solutions. Get yourself an Apple AirPort Extreme Base Station, connect an active USB hub to it and you can access multiple hard drives/printers via your WiFi network. Apple isn’t exactly “promoting” this feature but it’s there (last paragraph). The attached USB drives show up in the Finder on your Mac and you can even use one for Time Machine backups. You have several access settings to fiddle with, however they don’t distinguish between the different hard drives.