Michael Anissimov has put together descriptions of the top ten Transhumanist technologies. The article is a great overview of some Transhumanist ideas. Here are the items he includes in his list:
10) Cryonics
9) Virtual Reality
8) Gene Therapy / RNA Interference
7) Space Colonization
6) Cybernetics
5) Autonomous Self-Replicating Robots
4) Molecular Manufacturing
3) Megascale Engineering
2) Mind Uploading
1) Artificial General Intelligence
See his site for more information on each of these topics.