If you need the classic : http://www.amazon.com/dp/0060920432/
Flow:The Psychology of Optimal Experience
This book is not those personal-help books, instead inspires/motivates you to overcome (hacking pseudocode for the layman); if I may compare - very similar to talk about getting over "the wall" by Randy Pausch, but this book gives more insight 'behind-the-scenes'.
For tips on how to create the zone that OP is talking about, read the wikipedia article . The book Flow by Mihály Csíkszentmihályi  is also highly recommended.
The thing that is independent/unique about somebody isn't a static criterion that remains unchanging over time, it's more the trajectory you end up taking that's constantly evolving over time. All I'm saying is: don't exclude reading about past failures when you make your choices on what to do next. It's fine to say ok, let's stop reading for a while and try building this one thing my mind has settled on. That's a great habit to acquire.
The unpronounceable author of Flow:
says the most successful people alternate periods in closed states when they focus on a specific concrete project with periods in open states where they demonstrate huge appetite for new ideas.
I'm starting to think we're saying the same thing in different words and with slightly different emphasis. It is thus with most interesting conversations.