You cannot move here without a Qatari sponsor, mate. In other words, you have to have a job to come here.

Private Western curriculum schools are very expensive. Others can give you details but you can check these sites:

http://qa.edu.qa/output/page12.asp

http://www.dess.org/admissions.html

http://www.dohacollege.org/admission/register.php

My wife has done some tutoring for students at these schools and says they are good.

And yes, there is Virgin mobile here so it is worth a try to get.

Best of luck, mate.