Some of this may be a few weeks old, but:
- GRMM is a bit closer on Book 5, having postponed some chapters: http://grrm.livejournal.com/
- HBO has a GoT site (as well as a sight of Ned wearing a lemur skin): http://www.hbo.com/game-of-thrones/index.html
- Consensus seems to be March 2011 as episode 1.
- The Barn basement finishing will be complete and open to all who don't want to invest in HBO.