Sources 

Given the increased probability that SpaceX Dragon will be one of NASA's low earth orbit vehicles transporting humans, I'm just dumping some sources from a Google News search here. Fact is that with the cancellation of Constellation, this will be one of a handful of relevant US spacecraft.   

News items
http://abcnews.go.com/Technology/wireStory?id=9728679
http://www.dailybreeze.com/ci_14312678
http://www.theautochannel.com/news/2010/02/03/464414.html
http://blog.seattlepi.com/aerospace/archives/193454.asp
http://abcnews.go.com/Technology/wireStory?id=9710464
http://www.spaceflightnow.com/news/n1002/02ccdev/

SpaceX website
http://www.spacex.com/downloads/dragonlab-datasheet.pdf
http://www.spacex.com/dragon.php