Dang, I'd forgotten about those books.
I got kinda disenchanted with them when I picked the most sensible option on one page and ended up dead.
But I was already coding at the time, and it got me thinking a lot about the differnces in the two media. For one thing, the stories were dissapointingly short, even though the books themselves were normal-sized. This graphicly shows how much more work it is to provide interactive content than non-interactive.
As for the career change, I'll join the chorus and wish you luck. It might not work out, but when you're old and gray you'd be more upset with yourself for not having tried than you would for having tried and failed.