Sorry, I don’t have any special deals here, or I would be among the Missing right now, making my way through space bending puzzles. What I do have for you is a little something to curb your Portal cravings until you can get your hands on a copy.
That something is a webcomic called Portal 2: Lab Rat. For anyone interested in learning more of the lore behind GLaDOS and Aperture Science, this comic helps to fill in a few gaps in the story from the original game. And there were a lot of gaps. One of the reasons Portal was so successful beyond the superb game play is the compelling story and mysterious secrets that blend into not only the Half Life franchise, but real life as well, as witnessed by in game clues that players could decode and then pursue in a still ongoing ARG (Alternate Reality Game).