I need to find some info out about data storage systems. Fistly I need absolute 100% surety of non-loss or corruption of data and fairly speedy access to the data (although possibly only accessed once per month but this will vary). Am thinking a server plus backup to separate removable HD plus backup to DVD. Any thoughts/advice/costs? will need to be mac compatible as well. thanks edit: should have said data stored will be in the order of around 200-1000Gig but after initial storage will most likely only be accessed in under 1gig lots.