there have been LOADS of posts about renting property in Doha in the Forum about 'preparation and setting up' or something in Qatar Living.

Loads of forums in QL about stuff other than this chit-chat central forum. Click on 'forums' and see! :D

Life in Qatar - Preparation & Setup (is the area I meant)

Good Luck - you should find lots in there about housing! Probably more than you want to read LOL