DLink DNS-313/323/343 is just an enclosure. The DNS323, price at RM469. Put a WD Green WD20EADS 2TB @ RM 710 = RM1,179.
Put 2 x WD10EADS 1TB & raid-0 it to get the same capacity @ 2 x RM285 = RM570. Plus the enclosure you will be paying RM1,039.
WD MyBook World II is fitted with the same WD20EADS 2TB harddisk and the retail price is RM1,290.
My advise, if you do not know how to manage a custom build device it is better that you stick with the WD. Otherwise get a custom NAS which offers more functionality as below which WD might/might not be offering:
10/100/1000 Gigabit Ethernet Port
USB 2.0 Port for Print Server or UPS Monitoring Power
IEEE 802.3 + IEEE 802.3ab
EEE 802.3u + TCP/IP
CIFS/SMB + DHCP Server/Client
DDNS + NTP
FTP + HTTP/HTTPS
Jumbo Frame
JBoD, RAID 0, RAID 1
E-mail alerts
iTunes & FTP Server
Built-in FTP server for file access from over the Internet
UPnP
Power management for conserving energy and extending hard drive life
Real time backups with the included backup software
Storage permissions for users and groups
soft-modded UNIX operating system
Wah, thanks for the very good exporsure... Actually I'm also kinda of techies... Custom build should be no problem on me since I need for the performance.