I have been meaning to setup a FreeNAS server for awhile now, actually a real long time. I have some older hardware just laying around, with a 200gig internal SATA drive, and USB ATA storage array (holds up to 4 ATA drives). The storage array is hold about 800+gigs of space, only about a quarter used. Install took about 15 minutes to get up and going. Adding the drives were a snap. I just imported my USB array and can now map to it via NFS. The internal drive I thought I would setup as iSCSI. I really like how that is working out. I have my Windows 2003 and 2008 servers attaching to it, and it is really fast. I am pretty impressed the speed they are attaching at while being virtual and only going over my 100MB network. I also plan on setting up my Vista machines and laptop access so I can do quick transfers on the fly when needed. Here is a good write up on how to setup the iSCSI services within FreeNAS. I may also setup my VMware ESXi environment to take advantage of the iSCSI as well if I get any more spare drives. If you have the hardware and the need for extra storage space, FreeNAS is a way to go (http://www.freenas.org).