Dynamic Shipping Quotes

Hi all. first im looking for a readymade script for this i need it asap. i have a website, in ASP amd access, with a shopping cart and is backed by [login to view URL], what i need is dynamic shipping cost from fedex,ups and usps. i want to add a page in my checkout which gives me shipping costs from the 3 with thier various modes[ ground , 2 day, 3 day...etc.], according to what is in the cart, if anybody has already done this, pls post url's in ur pmb if uve done one or 2 that is also fine, give me that. in that case ill post another project for u. i need only the scripts installation is not required, have a very low budget for this, high bids will be ignored. money to be escrowed to be released only after succesful testing on my server. and i may need help in implementing. Happy bidding,