The fastest way would be for you to marry her outside the U.S. and then include her as either an H-4 dependent spouse in your upcoming I-129 H filings or if you are currently in OPT F-1 status, have her consular process as an F-2 dependent spouse (since H classification will not actually be available to either of you until the October 1, 2013 start-date). Once your H is approved she would then consular process for the H-4 visa in her home country and join you. You should contact an experienced immigration attorney to provide you with guidance and other potential options.
Answered on Mar 15th, 2013 at 4:21 PM