A: 

Actually CakePHP's ACL is capable for row access. Please refer to http://aidanlister.com/2009/05/implementing-row-level-access-control-in-cakephp/. But personally i dun like this approach. I may look into the Permissionable Behavior of jmcneese ttp://jmcneese.wordpress.com/2010/01/28/rmac-is-dead-long-live-rmac/ for my next project.

Hope the 2 links above help you and willing to see how cake community deal with row-access efficiency :)

Jesh
So it does do row locking, but it looks rather hackish and really complex. I'd take one or the other I think, not so much both at once. I'll also look into the permissionable behavior, thanks for the links!
Travis Leleu
I think I'll look into Permissionable...
michael