There are guides. Someone has a page listing what to do in order for each zone. It uses Silverlight... which is annying becuase you can't highlight items as you complete them to track where you are, but the list is helpful. That same person has TourGuide addon data files that lead your through each zone. I seem to have a 'suvega' directory in my TourGuide area.... that might be the name of the person here.

I search for some of these terms int eh forums here: TourGuide, Lightheaded, TomTom, suvega.... should be pretty easy to find.

I've hit 80 with 3 zones left over on multiples toons.