Run this together with a Western Digital drive of 500 GB which reflects the Seagate disk sitting in on delivery. Seagate disk does not seem to be the sharpest, but it certainly is good enough ..... if it endures? Has always been a bit negative towards Netgear and their networking products, but this seems to do what it should. The only minus so far is somewhat slow web interface (eg hangs rescan the media button in the interface even though the syncat clear). However, nothing I bothering me a lot on. Have it connected to a compatible UPS (APC ES 700) via RJ-11 to USB and it works great! UPS can handle 35 minutes without power, and it is full-load at the NAS, modem, router and cordless phones.
Have set up so it's spin-down of the disks after 10 minutes (can set it in 5-minute intervals) and the relay when only a few watts. Will measure idle and full-load at the moment with my current meter. Low power consumption is always good if it is on around the clock. Might be good to know if you are looking to drive a mini-ATX PC with FreeNAS so on.
The wireless 1080p streaming of HD content from my router worked like clockwork to my PS3a anyway, so "so far so good." Netgear themselves say in their FAQ that it can stream four HD signals simultaneously without problems with frame failure. Nothing I tested myself though.
Maybe upgrade the internal memory of this NAS also .... will see if 256MB is enough, or not. If it does not, will the 1GB of internal memory instead. This NAS is acting music and movie server in my home.