I remember when Windows ME hit the market in 2000. As a Business Consultant for an IT department back then, I knew better than to rush out and buy it. Techs (geeks as we are sometimes called) always have a golden rule not to put a new operating system into production until the first service pack is released.
My one concern is that since all retailers are selling Vista preloaded and it appears to work nicely at the store, what happens once you get home and start to install some of your old software? Or try to hook up your wireless network?
Not that I will shy away from the challenge of installing Vista on older computers or set up a pre-installed new system, I just want my clients to know the hidden software/hardware expenses, the incompatibilities, the downtime anticipated and the learning curve associated with Vista.
(HP, Toshiba, IBM (to name a few) sell XP systems online at their small and medium business sites)