Openfiler aims to combine NAS features (NFS, CIFS and HTTP) with SAN features (iSCSI, FC) in a very easy-to-setup storage appliance. It's been downloaded more than a million times, and its users include Motorola, Pratt & Whitney, BillMeLater and the London Metropolitan Police. Paid support is available. Operating System: Linux http://www.openfiler.com/