How can I make Macbook Air + iMac as one?

[jinxednuance]

And by that I mean, is there a connection that I can make that would automatically allow me to sync or save the same files on both computers simultaneously?

 

[simsaladimbamba]

Using a wireless network and ChronoSync might work.

 

[jinxednuance]

Ok, thank you.

 

[jdelgado]

Using a wireless network and ChronoSync might work.

This.
I have my MBP and a mini which share files. Although I do not sync both (my mini is a backup of the MBP), it can be done. There is documentation in the Chronosync site indicating how to do it.
One must be careful with the syncing procedure for email, ical, and other things that live in the User library (1Password comes to mind).