So it's getting near the time for me to upgrade my daily AutoCAD workstation machine from the Dell Precision system I currently have with 4GB RAM to something more powerful. The problem is that I can't really go any higher in RAM without leaving 32-bit Windows behind... I have been doing some reading on what Microsoft is planning for it's next version of Windows (I believe at the moment it would be called "Windows 7"). They're talking about a complete "do over" where they will wipe the slate clean and start fresh. They can finally get away with this due to the success of VM technology in both hardware (namely the Core CPU) and software. By using VM's in a newer version of Windows, they will solve the "backwards compatibility" paradigm that currently has a strangle-hold on Microsoft's codebase... Well with this in mind, I though, "Why not do that now?" I could build a workstation with tons of RAM (probably using a server mobo for the vast amount of slots available for expansion), probably a couple of CPU sockets, and 64-bit Vista as a base. I know there are a lot of small apps I run from time to time that are not compatible but couldn't I always just run them in a VM? In addition, Autodesk's latest platform is finally natively 64-bit so I'm good with the main software I need. Am I thinking correctly about this concept?