I have an active windows server 2003 windows domain LAN. All of the workstations (7 DELL computers)are 6 years or older, Their OS is windows XP. We are planning to replace all of them with new HP workstations with windows 7 OS. What is the most effective way to replace the old Workstations domain information to the new HP win 7 workstations? Can Win server 2003 OS handle the win 7 workstations?