A Synology DS213J would be a good place ter start for a NAS (I use its big Bro' the DS213

)......Synology NAS's are extremely easy to setup, even for those with fairly limited IT/Network setup knowledge. You just install LMS* (*Logitech Media Server) from Synologys Package center.....which is all done Using the Web interface/Control Panel & its literally a couple of 'clicks' so a real P.O.P
With the size of Library you are going to have as a starting point.....you're gonna need 3TB drives I'd have though to still allow space for expansion...& you'll need 2 of these for a Dual bay NAS + an additional 3TB desktop drive for 'Belt & Braces backup. I'd recommend WD Red drives for t' NAS internal Drives as they're NAS specific in terms of being up to the demands of 24/7 up-time + are whisper quiet & v energy efficient......these drives also come with a v reassuring 3yr warranty which makes the higher price of these drives easier ter swallow......WD seem to have a good level of confidence in the reliability/longevity of these drives, so they seem to be a good bet ter me. :^
A standalone CD/DVD writer is a smart move IMV I've used EAC myself in the past & have found an external/standalone drive tends to give more consistently good clean/error free rips & that the internal drives on both laptops I've used fer ripping get tripped up far more often. A real + of having a second preferred drive fer ripping is that if you can't seem ter get a 'clean rip' using the 1st drive I seem to find that 9/10 times swapping to the 'spare drive' will do the trick nicely. :^ This was despite the fact that both drives had been carefully/correctly setup for EAC......(which a lot of people seem to struggle with when using this S/W which can be a little fiddly/'tweaky' to get working at its best)
Another Real + of having a second drive is that you can have another instance of DBpoweramp/EAC open in another window on your laptop & be ripping albums concurrently on both drives, which will speed up the process considerably.
IMV you'd be a lot better off installing DB Poweramp with t' amount of albums you have to rip, as it is peerless in terms of ease of use/setup IME & its simply shed loads better in terms of speed of ripping each album over EAC & in some cases can be 2/3 times faster for many albums. The batch convertor is also excellent for converting FLAC/ALAC/WAV etc to 'lossy codecs' for space efficiency for portable players that don't have gobloads of storage space. I did try a couple of alternative bits of S/W for Batch conversion & I found they were 'Glacially' slow in comparison (Most that I've tried don't seem to manage the trick of having multiple cores converting concurrently either:nup:.....at least IME that is:?) & that they also returned fairly large numbers of failed conversions when faced with a 'large scale' conversion task. DBpoweramp simply sailed through this & also working with modern multi core CPU machines it can multi task when carrying out conversions in my case with my Intel Core i-3 350m processor in my Acer Timeline X lappy it will manage to be doing 4 conversions simultaneously....I think this is the same for Intel Core i-5's as they are also 'Dual Core' IIRC but if you have an i-7 quad core then you should get 8 batch conversions simultaneously which would make light work of comparatively large libraries.
The ID Tag tag editing S/W included in the DBpoweramp package is also excellent & easy to use too. You can get a free 1month trial of the DBpoweramp package & if you plan accordingly + invest in a couple off board drives....no reason you couldn't be ripping several discs at the same time if you also use t' lappies onboard drive too.

Still rather than go at it hammer & tongue you could use the month trial to 'Evaluate' this S/W & still get a good wedge of yer library done using DBpoweramp. Personally I wouldn't go back to using EAC & the paid licence for DB is well well worth it IMV.
Here's a recent thread in which I discuss my migration from my Netgear ReadyNas (my old NAS) to my new one, including some of my shortlist/decision making process.
http://www.hifiwigwam.com/showthread.php?88255-Upgrading-to-a-better-Nas-with-more-storage