I'll add my story too, although I consider it to be more of a work in progress rather than a success story (which is why I didn't post earlier). I have a 2.5 gpa in math from a top 15 school. I had an F or two, and a couple of Ds. I took a very ambitious schedule, but above all decided to focus on online poker rather than my studies. All day, all night, I was playing poker. Skipped class to play poker, missed assignments, etc. The story is awful, and I feel like a jerk telling it. I cleaned up my act, worked at 2 blue chip companies, have done meaningful work, and scored a 780 on my gmat. (As an aside, if you have a low gpa and low gmat, you really better have something very special [e.g. you played professional sports, founded a charity in Africa, or came up with the next facebook] to have a chance at the very top programs)
Anyway, I'm still waiting to hear from CMU (I had an interview and visited and liked it). My other decisions are in the books:
Accepted with scholarship to Emory,
Interviewed and rejected from Booth and Kellogg
Rejected without interview from HBS, Stanford, MIT
Not interviewed, but not officially rejected yet from Duke