Hi,
I created a demo for you (amazon only for now) at [login to view URL]
The demo will take up to 3 links only (that separate with a new line).
It's usual for me to perform the web scraping whether for clients or own projects, you might want to read my Reviews.
For Dell ([login to view URL] ?), I'm not too sure the item/product page which you want, so please inform/clarify me few URLs to Dell product so I can review it (and may be I will add/include it in the demo too).
Be notice that my script won't trim the white space around the product image, such may need ImageMagick (IM) but I'm not too sure about the IM command line and whether it will be fit to trim the white space for any images, so, my bid is only to download the images.
Regards,
Ibnu