eeewww, hard ones first, huh ?
Well, I'm going to answer your question with a question.
What do you want to do with the discs ?
Use for Archive, or for network access as in storage, or for media access. Do you want to Raid them ?
(see, you knew there'd be more than one, didn't you ?)
- there's just so many different boxes now that are more suited for one thing or another.
Some of these add layers of complexity dependant on your needs. Which you don't say - but rest...