Product Image background removal and re sizing - Photoshop

Every month I have roughly one hundred images of furniture that need the background removed and changed to white. This will be a regular thing. Resizing is required also. The process will involve: 1. Downloading approx 100 images from our FTP server. Files are named with the [login to view URL] format. The files are not large (either 640*480 or 800 * 600) in size are typically 50 to 100k each. 2. Changing background to white (or black where specified) 3. Making two thumbnails of each of the images in the format of small_xxx.jpg. Thumbnails are 128 *96 and 64 * 48 pixels. 4. Uploading both finished fullsized and thumbnails to folders on our FTP server I have provided two sample sets of images. There are three in each set - the original, the finished fullsize and the finished thumbnail as examples. Prior experience in doing this is required. Bidders are expected to be able to provide a couple of examples of prior work or be prepared to edit a few images that I send to them in order to demonstrate competence. This particular job entails: 1) 157 images that are 640 * 480 which need the background removed, replaced with WHITE, and saved in 640*480, 128*96 and 64*48 pixel sizes on our ftp server. 2) 15 Hi Res images (roughly 2Mbyte in size) which need the background removed, replaced with BLACK and saved back to our ftp server. Note: thumbnails for these 15 images are not required. Future jobs will vary in size between about 90 and 120 photos, so bidder should be prepared to provide a price per image.