You want to move everyone to Vista? You're either very brave or very... Well, good luck to ya.
Dell's lappys are pretty good, but then Dell doesn't make them.
If you are ordering several, you can probably get them to leave all of their crapware off of them.
I had my run-in with Vista this weekend. Before you take the plunge, look into ALL of your compatibility issues... printer drivers, software compatibility, hardware requirements. Vista is beautiful, but it was released about six months too soon.