This thread is so that others may benefit from what I've learned. You may also find my original thread useful "Which NAS should I buy, what should I use to back it up"
First, the NAS I purchased was a Western Digital MyBookLive, 3TB. It is reviewed here for you to see.
(Click here to understand RAID). If you don't run a RAID configuration you always have the possibility of (A) losing your data via hard disk failure or (B) having to re-rip your entire video library if that's all your using your NAS for. But if you do decide to go with a RAID configuration, you've just doubled your expenditure on hard drives. Most small NAS that you can buy on a limited budget only come with two bays. That means you could wind up paying $350 to $500 for 1TB to 3TB of total storage space. A lot more than that if you want to touch 4TB and up. Ouch. So I decided, I'd risk it and go with a single drive solution allowing 3TB. I'll backup personal pics, etc. via Crashplan and just re-rip my library if necessary. I got my 3TB unit for much less than $350. Plus, IMHO, 6 and 8TB solutions should come down in price over the next couple years allowing me a clearer upgrade path.
1.) I know there is a lot of discussion about what NAS to get. Honestly, it was a tough decision. It seems that a huge consideration is whether you are going to have some data protection by running a raid configuration (presumably RAID 1 or RAID 5)
Kingdom of Heaven was about 42GB for the clown_Bd stripped down version. 1TB will go quick.
2.) If you think 1 or 2TB is going to cut it, think again. I've been ripping BR ISOs and they range from 13GB to almost 50GB in some cases.
For a content streamer, I chose to go with 2 Dune HD Smart B1s. For me, the only real choices were one of the Dune units or the Boxee. The Popcorn just didn't have me from the start. The Boxee, unfortunately, was nearly the same price as the Dune Smart B1 because I would have had to add an extra IR USB adapter because my components are all hidden in an armoire. The Dune, IMHO, is superior to the Boxee if you are matching dollar for dollar.
3.) Check out reviews of your NAS on smallbuilder.net. They have charts showing the various speeds as well as the features of each unit. It's an excellent way to see if the inexpensive Synology unit is going to be as efficient as say a Buffalo (not saying it isn't, just saying the site will give you the information...so don't flame my thread).
http://www.mediasmartserver.net/. He has pictures of the various players and in depth reviews that most other places can't match. He also uses these players himself on a regular basis (or so I gather based on reading his numerous articles and PMing him).
1.) Reviews - CNET has some reviews as does some other sites. But again, dbone's blog is the place to go: