It's amazing how much disk you can buy for 60 bucks. For example, I just walked into a local retailer and purchased an 80GB hard drive for less than what my neighbor paid to fill the gas tank in her SUV...and I still overpaid. Years ago, I would have paid three times the amount for a drive a third the size of my latest purchase. Yes, storage hardware has gotten very affordable over the years and with all the breakthroughs in technology, what was once a data protection pipe dream, backup to disk, has become a stark reality.
If you need to backup large amounts of data, but aren't all that comfortable with a bunch of relatively slow USB or Firewire drives and you can't afford more expensive NAS and SAN solutions, consider an interesting answer from Highly Reliable Systems, the High-Rely eSATA Backup System. The e in eSata stands for external. This unit consists of a rack mountable chassis that uses seven SATA disk drives. It just might pave the way for future hard drive backup solutions. The important thing to understand about the High-Rely eSATA chassis is that it's not RAID configurable. The chassis simply provides you with 7 high capacity disk drives, each of which can be configured as a separate physical disk drive.
Bye Bye Tape, Hello 5.3TB eSATA