My accountant is on Bennet St!
You can get a train from Freo to the city easliy. If you were studying at UWA I would have suggested staying near the river close to UWA. That way you would get first choice of the river without travel (no smartassed comments about the river guys

)...just make sure that you are near the coast and near the train line and all is good. Freo, Mosman Park, and Cottelsoe all fit the bill there.