The only reliable method is a RAID array, where identical discs are grouped together to form 1 larger physical disc / volume.
Standards have moved on, and I believe Apple are using Thunderbolt for transferring data. And again even Thunderbolt has evolved into Thunderbolt II and probably Thunderbolt III is on it’s way.
I did use a SCSI RAID One Zero Array, but it was limited to 320 Mega Bytes a second sustained transfer speed. But at a size of 300 GB, it was too small. Currently using a SATA RAid 1 array, which at 2 TB is good on space, but very very slow. I am currently upgrading to SAS 3G array which will get me up to 2 TB storage but at a transfer speed of 700 Mega bytes / second (approx), which will help for a while.
But again… the array is located in my normal PC, so if the computer PSU goes up in smoke, then my array data could go up in smoke too.
If you are staying in the MAC system, see if your IMAC has thunderbolt connectivity, and see what prices are involved for a external Raid 10 (One Zero) array would be. http://www.elara.ie might be one place to have a look.
Building a RAID array used to be the abode of exotic, but it is becoming much cheaper and easier to buy / install.
Very sorry to hear about both of your unfortunate experiences.
A number of posts on this site have reported camera gear being stolen.
However is there anything which could be learnt for those whose gear has not been stolen?
i.e. what lessons learnt is there to be had / shared? Was the gear stolen from a car, house, time of day, type of mugger, number of muggers was there a particular technique used by the mugger / robber etc.
In other words what lessons can be shared to those of us whose gear has not yet been stolen?
I have often thought of going out taking night photography in Dublin, however I now suspect it might not be the safest thing to do now, especially when one is on their own.
I’ll take the lot for 60E, but I will not be in a position to collect until early Sept if that is o.k. with you. If not please feel free to sell to another person.