I have a Magento based website that I need some modifications to. I need to be able to add products easier, have sku's auto-generated and be able to add multiple quantities to one style that has a number of sizes and different color options (a matrix or grid structure to input inventory quantities). I may need a few extension or plug in recommendations to make the application more user friendly on the back end. I basically need someone to recommend the appropriate plug ins or extensions to accomplish my goals. I will purchase the extensions separately.