Network Storage
Now that the Drobo has Firewire 800, for those that have asked me about the ReadyNAS NV+ (which I own) and the Drobo (which I do not), I would recommend you buy the Drobo over the ReadyNAS.
Too many options in Drobo-space to recommend the ReadyNAS NV+ over the Drobo anymore, in particular that addition of FireWire 800.