I want to buy a standalone NAS box. Something that I can put 3 or 4 3.5 inch HD's (IDE or SATA) in a RAID 5 array and then serve it over SMB and/or NFS with at least 1 GigE connection. Web management would be nice.

There seems to be quite a few on the market that fit this description, but I'd like to know whether any of you guys have come across one you particularly like.

I'm trying to downsize my always-on hardware from 4 machines to preferably 1. Until recently I had a diskless shuttle (Mythtv Frontend), 2 full size PC's (Fileserver and MythTV Backend/VMWare Server) and a Tranquil box (Router/Firewall running off a CF card).

I've so far got it down to a Shuttle with a twin DVB-T card running MythBuntu with a mailserver in an Ubuntu JeOS running on VMware Server and the Tranquil PC (which I'd like to change to a purely hardware-based solution). However, I'm now running seriously low on disk space.