bill - 2:40 am on May 18, 2010 (gmt 0)
MS had some good foresight to include XP Mode in Windows 7 for this sort of migration issue. I know that there are some limitations with virtual PCs, but XP Mode lets you work with a lot of legacy apps in a very seamless manner. However, I think the XP Mode virtual machine is based on SP3. That might be an issue for some of these holdouts.