I'm using a
Conceptronic CH3SNAS with two 1TB drives in it in RAID1. I even have a small Debian server running on it on which I can install whatever I like (torrent/usenet client, webserver with PHP/MySQL/PERL, FTP, and so on..... server without any noticable perfomace impact). The device itself is absolutely fantastic and 'only' costs about 125 euro, without the drives. With a gigabit network and Jumbo Frames enabled (option in the CH3SNAS configuration interface) you can get up to 20MB read/write over your LAN.
I can only say positive things about this device. The hardware is great, super easy installation (no screws used), big fanbase, custom firmware, good default firmware, JBOB, RAID0 and RAID1 support . +++++ No need for mirroring with this device
