I'm using Ubuntu 12.04 with dual monitors with Classic sessions. Currently there're only one task bar in my primary monitor, showing all tasks / windows of both windows.
I used dual monitor setup in Windows XP with MultiMonitor TaskBar (http://www.mediachance.com/free/multimon.htm). It will show taskbars in each monitor, and it only shows tasks / windows of that monitor in the taskbar. I wonder if there're any application / extension / hacks to enable the same thing in Ubuntu.