I can recommend hotels in the Oaks accomodation chain (I think in Melb there's a lovely one on St Kilda Rd a little out of the CBD but easy tram distance right outside the door) - lovely hotel, reasonable prices even for 2bed apartment and the service is excellent.

When we stayed there there was an issue with our room where the loo didn't flush, they got a plumber in that day and when that didn't work they handed us the key to the room across the hall and gave us the option of moving entirely or just using the loo in the other room. Sure it was a little annoying but they handled it brilliantly, which says more to me about the quality of the hotel and staff than anything else.