I'd like to put a backup HDD on my WiFi network. It seems to me this would be a NAS with WiFi built-in, but I'm not finding anything like this. I suppose I could plug a WiFi dongle into a regular NAS and that might give me what I want, but I'd think someone would already make a product like this (with WiFi built-in). Maybe I'm not searching on the right terms. Seagate's Wireless Plus seems perfect, except it wants to be the hub of the network, not an attachment to another network, so no deal. Any suggestions? Thanks.