Ah, it's just happened to be my domain, I don't live in Isle of Man.

Yes, it is 80k USD. My rate usually revolves between 50/75$ hour, but I generally try to charge by week. Last year, I think i worked on 3-4 relatively full-size projects including:

- Backend for an iphone app - Backend/web frontend for a continuous event processor, a commercial offering in par with http://riemann.io/ - Backend/web app for a job board in restaurant industry

It is actually pretty easy to filter out low quality buyers: They will mass advertise the project for nickels and pennies. They will always try to negotiate the rate along the way. They won't answer your questions about the project details or simply have no clue.