What do you mean by syncing to your "iBook"?? iBook is an iOS based App, not a device. Did you mean "MacBook" or something like that? If that is what you intended to ask, the answer is a tentative "Yes", but both the iMac and the MacBook would have to be running at least OS X "Lion" 10.7 so that you could sync them throough Lion's "iCloud" feature. Otherwise I am not aware of a way.
The system requirements for using Lion 10.7 are:
OS X Lion system requirements
To use Lion, make sure your computer has the following:
- An Intel Core 2 Duo, Core i3, Core i5, Core i7, or Xeon processor
- Mac OS X v10.6.6 or later to install via the Mac App Store (v10.6.8 recommended); you can install without Mac OS X v10.6 by using an OS X Lion USB Thumb Drive, available on the Apple Online Store
- 7 GB of available disk space
- 2 GB of RAM
If your Mac does not meet these requirements, you will need to upgrade your Mac before installing Lion.
For more information, see OS X Lion - Technical Specifications.
Message was edited by: Radiation Mac
You can use DropBox to seamlessly sync data files between your two computers. Strictly speaking the files have to be kept in a DropBox folder for this to work, but there are work arounds. You have to sign up for the DropBox service and you get 2GB with a free account.
There are services similar to DropBox including GoogleDrive, SkyDrive, SugarSync, just to name a few but how far back they support older systems I don't know. Many have websites too so you can sync to the site seamlessly from the newer computer and use the Web site to download/upload data from the older one.