I just re-installed Windows not long ago on my 30GB OCZ drive. Once I got my Intel drive squared away:
I just made a Image of the OCZ drive with Acronis (I did disable the PageFile just before Imaging. Recreated once new drive was up and running)
Unplugged it, and hooked up the Intell Drive
Booted from Acronis CD, and restore the Image to the Intel Drive.
It Resized the Image to fit, and everything was fine. Even the alignment.
Boot to Windows and let it re-install drivers
and reboot. Then you can hook up the old SSD, and format it.
In my case, I had several games installed on a mechanical HD. As well as Music Library etc on other drives.
Other than installing new drivers for the SSD, everything was normal, including the installed programs on mechanical drives.
BTW, I didnt have a 100MB reserved in my image either.