Welcome to Doha, may your stay yield fruitfulness to DOHA and u. ya! toys r us is near AL SADD, if your company doesn't provide transportation, its better to stay near by.

if your budget is 3000, you can live in individual room with bath attached, but finding one such is a bit difficult but is possible. once you arrive in doha, try talking with your office or collegues to provide accomodation till you find one. Its much better you look at the room personally suited to your taste.

Dont forgot to post an ad in the classifieds section with your contact nos. or atleast your friends contact nos. in doha. May be it might help to find b4 u r arrival.