Maggs, that's a bit like asking, 'what's it really like to go to University?' or, 'what's it really like to be married?' The international school in Houston that has caught your attention will be just one in a huge and baffling catalogue of very diffferent schools calling themselves 'international'. Like going to Uni and getting married, working in an 'international' school is certain to change your life, but how, exactly, will depend on a thousand things. Spend half an hour trawling the 'teaching overseas' forum if you want a taster - a lot of silly banter there, but you will get a sense of the variety.