Need strong Shipping module

Hi everybody

I look for s trong shipping module that allowed me to configure a lot of model of shpping cost

First one 1 based on producted category ,weight (and size if possible)

And second based on size and weight with on option for economy or priority shipment.

My website is http://www.carnassiers-shop.ch

For example I want that if my customer take some articles in the category softbait and snap and accessories only they have a price for shipping based on the weight (cause this this some small article and I can send them in a standard letter)

But If the customer take in category softbait , accesories and Hardbait I want the shipping cost will based on weight size and option for priority or economy cause in this case I know I must sent a box and not a letter

Do you a module able to do that ?

And If I can configure in add shipment per country it could be great !!!

Well I hope you understand what I need because my english isn't so good

I have a Category-Based Shipping extension, which will work for assigning shipping formulas to different categories. It does not support live rates (like USPS or UPS) however, so you'd need to come up with the weight or volume formula yourself.

To update: I now have Ultimate Shipping extension that can do live and formula rates for different products and groups of products.