1) At least 2TB to start with.
2) Some degree of resilience - my current system is RAID5 - so I can lose one of the four hard drives in it without losing any data.
4) SMB (Windows Folder Sharing).
5) Requires no admin. I do not want to created my own networked file server - I want something I can plug into the power and network and forget about.
6) Preferably upgradeable.
7) UPNP would be nice.
The Drobo looks lovely - but is horribly expensive when you include the Droboshare for network access. Anyone got any suggested alternatives?