Mine is a 4 bay NAS drive with hybrid RAID (to allow upgrading a single hard drive at a time without having to copy data off onto another drive temporarily etc). It was £245 excluding the drives, in Tottenham Court Rd.
They do a 2 bay version (£160 I think?) and even a 1 bay version (£120 I think?), but the functionality is the same. The only difference is the 1 bay version obviously loses all your data if your drive dies, the 2 bay doesn't if you set it to RAID 1 mirroring, and the 4 bay one aside from obviously larger capacity lets you upgrade the disks 1 by 1 with no hassle.
They seem expensive but are well worth the money. The feature set is amazing. It is a DNLA server so all the videos I put on there are instantly available to my Samsung SmartTV over the wireless. It also has a built in file downloader which can also do torrents. It has an associated app for the iPhone that lets me find a torrent and then send it to the Synology to download the torrent file and auto kick off the download. By the time I get home form work the torrent is ready and waiting for me, if its a movie I just flick on the tv and select the NAS as a source and watch it. Simples!
It also acts as Apple TimeCapsule for wireless backups from multiple Macs.
The model numbers start with DS followed by a number that indicates the number of drives (1,2,4 etc) followed by the model year (eg 10,11,12) followed by a J if it is the "cut down" version. By cut down it has a slower processor and less ram. Mine is a model year 2010 and is a cut down one. It still only uses 50% of the ram and the cpu mostly idles but spikes up to 30-40% when doing heavy stuff. A newer J model would likely have a faster processor than the non cut down version from a year or two ago so I say get a J version, it's plenty.
Software support in terms of OS upgrades is for a in 5 years so my 2010 model is fine until 2015 at least.
