I've been surfing around different sites and I see that lots of sites have the web design quote calculators. The person can put in basic information and then get an estimated quote automatically...I know that would help me out!

Does anyone know where I can find a script like that one? Or what I can use as a foundation to begin to create one?

I really like these:
http://www.webpagefx.com/How-much-sh...site-cost.html
http://www.mcwebdesign.com.au/calculator/

Any help?