While playing around with JQuery UI's slider widgets, I decided to throw together a quick freelance project estimator. This is not based on science or statistics, so use it with your own judgement. The 'Client Information' bits shouldn't be taken too seriously either, I added that in to emphasize that the type of client can often dictate quotes too. By the way, I apologize but the first two sliders can be a little fidgety, likely the result of my poor scripting.
Disclaimer: This is not meant to be accurate, use it at your own risk!