You can also sync your Mac with multiple devices with
SyncMate (
http://www.sync-mac.com). SyncMate allows syncing your Mac to Windows Mobile or Nokia S40 phones, other Mac or PC computers, Google account, Sony PSP, USB drives and backup Mac data online.
SyncMate if offered at two editions:
Free (contacts and Calendar sync) and
Expert (iTunes & video, iPhoto, Mail, Notes, ToDo's, bookmarksa, folders synchronization, etc.) (
http://www.sync-mac.com/syncmate-expert.html)
Check detailed sync options
here http://www.sync-mac.com/syncmate-features.html.