Want to enjoy a great fiction book about the longevity topic? Take a look at "Forever And Ever" by Dan Barker.
In the publishers words:
"FOREVER and EVER is the first fiction title on the topic of gene-based aging reversal and engineered human immortality. Developed over a four-year period with eminent molecular biologists and bioinformatics experts in the San Francisco Bay Area, FOREVER and EVER is a fascinating journey through the unprecedented social dilemmas, intense international power struggles, and bizarre possibilities of unlimited life in a youthful state."
I just got my copy and can't wait to get started. Will post a review when I finish, but a quick page-through looks great.