Windows 8 RTM Freezes on Mac Book Pro
I encountered a similar issue on my MBP when I installed the Windows 8 RTM (also a Core 2 Duo 13" MBP). Reading around, I found the following discussion on the Apple forums that mentions a bcdedit fix, along with updating NVidia drivers. I followed the key "fix" steps on the second post at that link, and they have fixed the issue for me.

To summarise:


Run a command prompt as administrator and enter the following command: bcdedit /set disabledynamictick yes
(This step is only relevant if your MBP has NVidia graphics instead of the Intel HD / ATI graphics on more recent models) Download the latest NVidia graphics drivers


If you're interested, this article theorises about the dynamic ticking issue, and why turning it off should fix the freezing.