Hopefully, everyone knows that VPC 2007 has been released as a free download.  Get it here:

http://www.microsoft.com/windows/downloads/virtualpc/default.mspx 

 Here's some good VPC related links as well:

• http://blogs.msdn.com/virtual_pc_guy/default.aspx
• http://vpc.essjae.com/
• http://www.roudybob.net/?cat=11

Some good tips from Matt Hestler's Blog:

http://blogs.technet.com/matthewms/archive/2005/09/09/410546.aspx

http://blogs.technet.com/matthewms/archive/2005/09/23/411478.aspx

http://blogs.technet.com/matthewms/archive/2005/10/07/412159.aspx

I must admit, however, that I'm more of a fan of VMWare's Virtual Server product.  It's free, and in my experience, has better memory management, and less disk swapping/IO operations.  I'll give the latest VPC a try.  I also have been doing a fair amount of work with Linux (oh, the humanity!), which has required a virtualization product that can support Linux better than VS2005 can.