Quite a number of third party modules are out already for Python33.
Their Windows installers can be downloaded from
http://www.lfd.uci.edu/~gohlke/pythonlibs/

Just to show a few:
PySide-1.1.2qt483.win32-py3.3.exe
matplotlib-1.2.0rc2.win32-py3.3.exe
cx_Freeze-4.3.win32-py3.3.exe
pyglet-1.2alpha1.win32-py3.3.exe
numpy-MKL-1.6.2.win32-py3.3.exe
pygame-1.9.2pre.win32-py3.3.exe
PIL-fork-1.1.7.win32-py3.3.exe

Note that a fair number of Python functions have seen improvements. Check the 'What's New' in the helpfile.

To explore code wih Python33 on Windows, write the following batch file:

rem idle33.bat
rem run IDLE IDE with Python33
C:\Python33\pythonw.exe -u  C:\Python33\Lib\idlelib\idle.pyw
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