This setup looks good. Mages are getting so much control in Cata, you could really exploit it.
Anybody thought about cyclone -> ring of frost combo (activate 2 secs before cyclone fades to ensure a nice 10 sec stun)->poly->root?
I still will probably playing feral rog and feral priest(shaman) again, but the possibilities are endless. Thunderstorm into Ring of Frost, bleed up -> dragons breath -> big nuke -> maim -> counterspell.
Can't wait for expansion: )