I have X3 installed on my Win7-32 system.  With prob a year away + driver dev time, it's prob summer 2015 before the next version of Win, so I should bite the bullet and upgrade to 64 bit, and maybe put in an SSD boot drive.  
With soooooooooooo many daw and vst licenses to re-install and migrate, can I dual boot with the same X3 license for both drives until I get everything installed?  Has anyone gone thru the 32 to 64 bit upgrade process with many progs and could share some knowledge about the process? Do all vst licenses require authentication again?

You can install X3 on more than one partition or computer per terms of licensing agreement.  You just can't transfer license to another.

Mark, if it was me, I'd just bite the bullet, re-format my hard drive and install everything from scratch
 
Just make sure you have a written or soft copy of ALL your reg no's before you start.

The Sonar license allow you to install Sonar on an additional computer, as long as you are only using 1 computer at a time.
 
Bob Bone