By converting PSD to Magento, you will be able to take benefit of customize online shopping cart architecture. The coders can do a job in a day or so and help you become a magnet for big fishes out there, just waiting for a chance to spend money on any rightful product. If you are looking for catalog browsing/management, customer service/accounts, mobile commerce, order management, payments or shipping then Magento is the software you are looking for.