best back up for grahic design?

Hi there, I'm a graphic designer, print projects mostly. I use a lot of photos and graphics made in Illustrator. I need to buy an external hard drive for Time machine back up and storage of files. I've got an iMac OS X v 10.6.8 Processor: 2GHz Intel Cor 2 duo Memory: 2 GB 667 MHz DDR2 SDRAM

This is the one I'm looking at. Is it a good choice? Designers comments would be most appreciated

Seagate - Backup Plus 3TB External USB 3.0 Hard Drive

I use a Synology DS-713+ NAS and love it ... lots of room and VERY quiet.

Going with a single HD for Time Machine is fine, but if that one HD fails then you lose your data. A lot of NAS' now can act as a HD for Time Machine as well. With this option, you can RAID on top of Time Machine. So your data is protected against single drive failures..

pwfletcher said:

I use a Synology DS-713+ NAS and love it ... lots of room and VERY quiet.

Click to expand...

Thanks a lot I'll look at that one too! ;D

Raz0rEdge said:

Going with a single HD for Time Machine is fine, but if that one HD fails then you lose your data. A lot of NAS' now can act as a HD for Time Machine as well. With this option, you can RAID on top of Time Machine. So your data is protected against single drive failures..

Click to expand...

Thanks a lot I'll consider that!
What about this one? iomega 35541 2TB EZ Media & Backup Center

pwfletcher said:

I use a Synology DS-713+ NAS and love it ... lots of room and VERY quiet.

Click to expand...

Synology 1812+ here. Wonderful device.

BUT....if you want true backup you need more than one device.

Files on you computer ( I use Raid 1 so I have a mirror drive)

Backup on a second device ( I like the Synology NAS since the files are available over he network)

A portable backup you can take offsite. I use Seagate 3TB externals and rotate them every few weeks to an offsite location.

BTW, I do this for my advertising photography images and personal data.

I do my Time Machine and Carbon copy clones to externals in a dock.

Thanks a lot guys! I feel more educated now!