If you're interested in an audio summary of NAS solutions, check out This Week in Computer Hardware 224
This Week in Computer Hardware 224 "NVIDIA GeForce GTX760 is Full of win" has a great segment this week, with Allyn Malventano giving an overview of NAS solutions, when asked the following questions:
To jump to just the right spot in the podcast, 49 minutes and 11 seconds in, just click here for audio:
or for video and subscribe links, head over here
I've never heard the differences between QNAP, Synology, and Drobo described so clearly. A great listen if you're looking for backup storage options for your home lab. Also check out the The Home Server Show Forum, with great discussions about NAS options here.