I have never heard of a memory stick that would plug into the USB port of a computer.
There are card readers that plug into the USB port and then you plug your camera memory card into the card reader. They make card readers that read all types of memory cards.
Can you provide a link to information about a memory stick that plugs directly into the USB port.
Here is a link to some USB card readers:
If I have a Sony Vaio computer, would it be best to get a Sony digital camera? I have gotten quite used to my Kodak Easy Share and really like it, but I am giving it to my son. The only drawback with the Kodak Easy Share is that I couldn't plug the memory stick directly into the USB port; with the Sony digital camera, I could. No biggie, but I was wondering if there were other reasons I should stick with compatible computer/digital camera? Thanks!