Thank you Black Pudding.
I already made contact with some realtors in Doha, and a soon as I arrive and I'm done with my initial paperwork, etc., I will arrange a meeting for a look around. I'm coming alone first, and in a few months, my wife with the kids.
I guess that we will do as you recommend, and use the cargo allowance gradually.
I hope to see you soon in Doha. Cheers!