Weapons is great!!! So much better than the crappy ATC side. ;D
When you go weapons, you definitely have to go to North Bay first. I've never heard of anyone not doing their time in the Bay. You have to do surveillance, then ID, and you could possibly do RADIL too, I think. Then there's opportunity to move to weapons tech, which is a much more interesting and involved job. You sit beside the controller and assist them during their missions with helping them get the information they need, coordinating with outside agencies (ATC, centres, etc.) and being a second pair of eyes on the scope.
You could be posted to either Cold Lake or Bagotville to work in one of the tactical radar squadrons as a WASO (Weapons Assistant Sensor Operator... ?). It's much more fun being in one of the deployable squadrons than in the Bay, in my opinion.
As for AWACS, I'm not exactly sure but I think you may be right - Sgt+. Don't quote me on that.
Check out this video:
http://dev.multimediaservices.ca/newmedia/controller/
It's for AEC, but you could still get a better idea of the differences between the three sides of the trade. I wonder if there is an ACOp video like this one?
Any other questions feel free to ask.