You can run the application on a Macbook as well. I have a buddy that I showed how to use Xact in ||'s and he uses it in the field.
As for backups (as another user responded), the Time Machine tool is really nice (I have used it once for a file I accidentally deleted). As for image handling, the mac product is far superior than the Windows system.
The only weakness in Mac are scanners. I actually run the scanner as a device in the Windows partition then store it back on my electronic file I use for claims that resides on my Mac Desktop.
Another headache for some in transition is software such as Adobe Acrobat. Acrobat will allow you to Cross-grade their product to have a Mac license vs the Windows one you may already have. Mac comes with a tool "Preview" that will handle most things that Adobe can do for you, but if you need it you can save some coin by getting the upgrade price on a Mac version, just contact Adobe customer service and they can direct you on how to do this change.