I tend to agree with most of what has previously been posted on this thread about state schools. Feral brats, the law stacked against you, being beaten up in the classroom by agitated parents - it's all been said.
I taught at a college of FE. I don't think it was quite as bad as a state school though a good proportion of the students I encountered were beyond redemption.
With your subjects you could probably get a position in an FE college, if you really are bent on state education but be prepared for big letdowns - depending on the area you go to.
This link is
the place to look for jobs. It'll give you a good idea of geographic and financial ranges too. You can filter searches to look for everything from junior, through to HE (Unis) and even private, language centres and jobs abroad.
http://www.tes.co.uk/