experience
mytiju - you said alot.there's no substitute for putting your time in and hard observation.there's always something to learn.sometimes you can pick things up at seminars,and by approaching the right people.i found even the laptew tapes were just something to fill the void during down time,like a book,story or work of art. there's no "expert" that wasn't driven and did'nt put the time in.that's where the real knowledge is gained.