Go find all stock firmwares here: http://forum.xda-developers.com/show....php?t=1424997

Until Samsung corrects the emmc bug, I an using the SpeedMod kernel: http://forum.xda-developers.com/show....php?t=1673072

Once your Note is rooted, best choice imho is using Mobile Odin Pro, to flash firmware on device without external computers, and automatically inject root and superuser into the flashed firmware.