Rooms for rent in Brussels - chambres a louer a Bruxelles

some useful links here:

http://www.appartager.be/

http://www.expatriates.com/classifieds/bru/rma/

http://britishexpats.com/resources/housing/europe/belgium/

http://www.bdlf.be

http://www.immoweb.be


Bruxelles is quite cheap - at least compared to Roma, London or Paris.