Opinions On Netgear ReadyNAS Ultra 2 Plus

I am considering the purchase of a NetGear ReadyNas Ultra 2 Plus for my home network.At the present time, I have a file server that is about 6 years old running an old pair of 200GB hard drives.While these drives are not mirrored, they are synchronized multiple times per day using Robocopy.I've reached the point where I don't want to manage and maintain a server (windows or linux) to provide simply storage on my network. By going with a NAS device, I can eliminate OS patches and updates and having to maintain another device. The NAS device will consume less power than my server, and take less physical space.And these NAS devices have DNLA built-in, so streaming from my PS3 and 360 should be simple. And the particular version of this NAS device offers iSCSI target support...which i could take advantage of in my virtual lab at home.

I've found the Ultra 2 Plus for $379 from Amazon.This model has the dual core atom processor, which is advertised and reviewed to provide around 30% more performance than the single core atom offering.. I'm planning to add a pair of 2TB Seagate Barracude Green 64MB Cache and run them in the mirrored Netgear X-RAID2 setup. This provides a mechanism so that I can actually replace the 2TB drives later with larger drives without having to backup and restore data to the device.Any particular reason you guys can think of to say this is a bad idea? With both drives, I'm looking at $619 for a small, silent device, which allows hot-swap drives, easy sharing and support for my 360/PS3 and it provides 2TB of mirrored storage space.