It's been a while since I ran QB Pro 99, but I remember that I liked it. QB Pro 2000 eliminated some of the long time features that I missed, then QB brought back features in 2001. I believe that the Intuit / QuickBooks website will show you features of the 2001 version.
I also just saw the features of the QB Express from the LawnSite banner add. Looks interesting.
Fine Lines Lawn
There are no stupid questions... they're just the easiest to answer.