I appreciate all your comments everyone. I guess the general consensus is to sort out my shopping beforehand.

ste, I think I'll give Asda a miss ;)

MancDave, quite surprised to hear that shopping is limited. I was in Qatar in August for a short 3 day trip but didn't have the time to sample the shopping centres/malls. My current wardrobe is more suited to Middlesbrough's weather and not Qatar's 50 degree heat...