do edecxel, I did them and they are a lot easier than CIE and they also contain stuff that will help you a lot if you deciede to do those subjects at A level
Edexcel seem to also only have 1 exam for the new IGCSES.
I'm looking at doing Geography, History, Maths & Double Science. Do I do old spec for 2010 exams? I know I do with Science. Geography & History I shall wait till 2011 to do them.