nas upgrade query

[delboy13]

i have a synology ds210j nas which i use to play files from using xbmc on htpc and also for downloading. at the moment i have 2tb hdd which is nearly full was thinking of adding another hdd as have 1 bay free. seen this HP ProLiant N40L MicroServer which can be bought for about ?90 after cashback is there any point in me upgrading to this or just stick with what i got and buy a hdd

[dasteph]

looks a nice piece of kit, but i think i would just add another hard drive.