Currently Being ModeratedMar 15, 2013 8:46 AM (in response to wardrobestar)
Mt Lion does allow multiple Time Machine drives. It doesn't allow you to have different backup sets - that is all the drives backup the same folders/files.
Over the years I've used several other backup programs. Chronosync and Databackup are two programs I've used and both allow for incremental and full backups. I currently use Chronosync to back up just data and media to an external drive I keep off site.
Currently Being ModeratedMar 15, 2013 8:51 AM (in response to wardrobestar)
SuperDuper! is still available, compatible with the latest OS's and supported.
Another choice that is also often recommended on here is Carbon Copy Cloner:
I've used both and prefer CCC as it makes a clone of the Recovery HD as well.
Currently Being ModeratedMar 15, 2013 9:09 AM (in response to Paul_31)
I agree with Paul,
I like CCC. In addition to basic backups, You can start with a clone of your drive and then do the incremental backups. A clone allows you to simply boot off your external drive if your internal ever crashes. You can't boot off Time Machine. Recovering from a hard drive failure is easier and faster with CCC than with Time Machine. CCC can also do automatic scheduled backups, and you have more control over settings.
Where TM shines is in hourly backups, and integration with Macs with little hassle. Coupled with versions from Mountain Lion you can get good coverage. I use both and some iCloud, Evernote and Dropbox storage to protect my data.
Finally, if you are using your iMac for both personal and business, you might consider using separate user accounts to separate usage. Depends on how you like to roll.
Hope this helps, Greg