The sale runs until 11pm EST tomorrow (1st March).
In addition, a few of the comics are available to read online for free as an introduction to the series:
- Adventures of the Fourth Doctor in issue one of Classics
- The Tenth Doctor needs to recover memories of his earlier selves in part one of The Forgotten
- The beginning of the final adventure for the Tenth Doctor in the Doctor Who Annual 2010
(with thanks to Jim Spivey)