I have 45 images taken from a 4 or 5 MP camera. I need the background cut out of each of them and a universal backdrop (shadow) of the image added. The pictures need to look very good and appealing. The pictures are of retail good that I will be selling on a website, so they must look good (change brightness/contract, etc. etc.) These picture must be fast loading on a website (more than 20 thumbnails will be displayed at a time on some pages, and 5 or more regular sized pictures will be displayed at once).