I am running vista 64 bit business edition, and I am pretty pleased with it. Though I have one annoying problem:
I prefer to use the "classic style" of the start menu. This allows me to customize it with my often used programs on the top, and then folders with different categories below. This turns out to be very problematic in vista. The OS insists to sort the start menu, moving the "category folders" to the top, and my often used programs below. And this is not how I want it!
There is an option in the standard vista start menu options to check and uncheck Vistas sorting of the start menu. This does not, however, affect the settings in the standard menu (I don't know why it should, but odder things has been seen... OS-wise). plovfure