cx_Freeze is the only program that can freeze py3k code that I know of. I didn't have any major issues with it, but I've only played with it. In any case, if you're going to roll your own, I'd be happy to help test it.
-- CPython 3.2.2 | Windows NT 6.1.7601.17640 -- http://mail.python.org/mailman/listinfo/python-list
