I've been wanting a NAS. Just not in the toy budget right now. Looking into finding an old wireless access point running dd-wrt for now. Need something decent enough to run Apache/PHP, which an okay NAS should be able to handle. We use 3 Netbooks, so the desktop is virtually useless. Want a NAS to fill it's role for a fraction of the power. Not something that is going to happen immediately. That is were the sdcard/RTC comes in. Both were stupid simple to implement. I used a micro sd card adapter as a socket. Wired it up with the resistor method.