I'm in a similar situation at the moment. My kitchen sink disposal has a leak, so if I run any water, it simply runs out the disposal instead of going down the pipe. So one of my bathroom sinks has become my temporary kitche sink. And the enamel on the other bathroom sink has chipped. I bought a new disposal at Home Depot, and since I have to call a plumber anyway to install it, I also ordered a new bathroom sink so he can do both jobs at the same time. I figure I'll save some money, since the first hour is the most expensive. Since I ordered the sink online, I have to wait for it to arrive before I can call the plumber.