Current affairs revision is a doddle! Obviously the papers are a good start! However, if the Times is a challenge, try a mag called 'The Week' - it details all the worlds topical editorials. Finds the ones you are interested and research a bit more in the papers and on the net. 6 weeks before you go choose 4 national, 4 international and 4 military stories; get a brief background on each and then follow their progress. Have a brief knowledge of a few others - but no need for any huge detail. Steer clear of talking about Northern Ireland - it will tie you in knots!!
Also try watching TV progs like question time - if you can't form your own opinion straight off - pinch one from this prog, (and there will be lots!), closest to what you think yours might be!
Good luck!