Network Attached Storage

My Landisk has failed. A multimeter showed no output from the power supply - trying a different power supply, its web server interface worked, but showed no disk present. I haven't tried taking the disk out and trying it in a PC, but I'm not optimistic.
It's not a disaster, because everything on it was only a copy of stuff elsewhere - but now some of the stuff has no other copies.
I'd been thinking about getting a better NAS anyway, one that I can install other software on beyond the builtin FTP/SMB server, possibly a Netgear ReadyNAS Duo (and yes, I realise that RAID isn't a replacement for proper backups).
Any suggestions/recommendations?