Are there high-resolution images of the temples available for download? Specifically, are there any images of the interior of various temples?
Interior shots of the temples are no longer used once a temple has been dedicated. As to exterior temple pictures, the Image Library page of the Gospel Library on LDS.org lists many online sources. The Newsroom also has lots of photos. Other Web sites that are not affiliated with the Church, like www.ldschurchtemples.com, have external photo images that are submitted by individuals.