Wow... Do you expext that there are several stereo people installing computer networks for customers? I've never even put the 2 together really... Although I am a Huge computer geek, and do install/build/maintain computers in a limited fasion.

Generally, if I'm building a Computer for a business client, I'll install a RAID-1 arrary. This is a basic Mirroring Backup. Install 2 of the same Hard drive (Usually SATA drives now) and mirror them. Works great.

For redundant backup, I usually recomend to have 2 external FIrewire Hard drives that auto backup at night. at the end of the day, swap the drives and take yesterdays backup home with you....