A proper HD monitor is VERY important when shooting, these are not cheap but they are very essential. If I am not mistaken, 2008 is the year when HD should be standard, so after that transfer will not be needed. Its hardly needed today.. When it comes to movies, the distributors are working pretty good on placing HD projectors in all cinemas. This means that you will no longer need to transfer HD to 35 mm, but rather the opposite way!
My guess is; in 5-6 years, 80% of all features made are shot on digital:) Film is dying!