What camera/scanner/? takes pictures like these?

Those beautiful images are well within the capability of any decent dSLR and a dedicated macro lens of 100mm or so.

1910 Lincoln, Canon 450D w/100mm Macro, full crop:

Where does one purchase a usb microscope?

both of these pictures were taken with the same old 3.2 MP camera and the same lighting. I do have a cheap usb microscope but I usually use the camera because I can usually get a good enough close up of what I am trying to show and a picture of the whole coin which I can not do with the microscope

I agree a good dSLR is definitely best. I was just illustrating you don't have to have any special camera or equipment to take adequate pictures for the web. Mine is a camera I paid 25 bucks for about 10 or 11 years ago and it 3.2 MP and both shots above were taken with no tripod or anything. I would love to upgrade to a nice dSLR camera but every time I get a few dollars saved up I see another coin I want that usually costs more than I have saved so I go backwards instead of moving ahead each time

I use an Epson Perfection 4180 PHOTO Scanner and get images like this.

There is no real secret. Most people don't realize how powerful their scanners are. I can't speak for all scanners but this scanner (Epson Perfection 4180 PHOTO) has three modes 1.) Full Auto Mode. 2.) Home Mode. 3.) Professional Mode. The Profession Mode is like using a 4-Speed transmission option in a car - it puts you more in control of the operation. One important option is resolution were you can go from 72 dpi to 12,800 dpi. The date on this 1882-O/S Morgan dollar VAM-5 was scanned at 3200 dpi (It's for sale on eBay now). For scanning the whole coin, 300 to 600 dpi works good. I scan a coin and then up-load the image to Adobe Photoshop for sizing, cropping and adding any arrows and descriptions etc.

One quick tip is to make sure you "select" the area to be scanned, like just out side the limits of the coin, or just the date area. Many frist timers forget to do this and end up scanning the whole scanner bed at 600 dpi, or worst yet at 3200 dpi and end-up getting a memory overflow.

Give scanning a try, and experiment with it - you will like the results. If you look at my current eBay Auction images (user ID hensteethhunter) you can get an idea of the quality of images you can obtain with this type of scanner.