Niceol via eBay offers the 1,000x 2-Megapixel USB Digital Microscope
plus 69 cents
for shipping. That's tied with our mention from a month ago and, excluding other eBay vendors, the lowest total price we could find today by $3. It supports 50x to 1,000x magnification and USB so you can view the output on a computer monitor.
Note: It ships from China and may take up to four weeks for delivery.