The other two boats, which are between Ohio and Georgia in the conversion process, are also featured in some new multimedia on the 'net. Here's a YouTube photo slideshow of a tour of USS Michigan (SSBN 727) that happened earlier this year; the video was posted by a national officer of U.S. Submarine Veterans:
Also, here's an article that mentions the upcoming deployment of USS Michigan along with a discussion of the saga of the ASDS she'll be carrying.
Finally, there are some new pictures of Seal Delivery Vehicle operations from USS Florida (SSBN 728) that took place earlier this summer, but were just released recently by the Navy. Here's one picture:

Edited 1540 06 Dec to correct the hull number of USS Georgia.