Actually I think you will find LOADS of stuff on QatarLiving related to your questions, especially in this particular forum 'cost of living'. Maybe flip through the threads and have a read :D

Also, we have a Qatari on QL (amnesia) who started a website about Life in Qatar (think it even has price of groceries!) Maybe take a look at thas as well?

http://www.iloveqatar.net/

Good luck

[img_assist|nid=57285|title=|desc=|link=none|align=right|width=|height=0]