Web Calculator - PHP or Flash

MUST HAVE GOOD FEEDBACKS Need Web Calculator for Website needed to have completed within 48 hours. Should be done as component for Joomla websites. Have design of what we would like to see done. Will be more than happy to share and discuss more information with the appropriate person. Looking for 1 calculator that will do 4 different calculations based on users input. There is a budget of $75.00 or less for this project. Please bid to your liking, but do not exceed the budget amount. Looking forward to working with good people for other projects that are need soon too. Already have other sites in design and will need a few calculators for that as well. But we are looking for good feedbacks with someone that knows what they are doing, and has good communication skills. Will be happy to discuss the payment terms and conditions with the selected provider.