I've also heard some couples having their ceremonies at the Browning Ampitheatre (and it's free!). We're looking for an indoor (our wedding is in April) place to have our ceremony near the OSU area, since we are having our reception at the OSU Golf Club. This is a little more difficult because if you get married at the OSU Alumni house or the Blackwell, you have to have the reception there.
I know you can book at the Faculty Club and the Fawcett Center. I don't know about anywhere else. I know I've seen people taking pics around campus and we defiantly took some on the oval for my friends wedding.
it is a PDF file and it takes a long time to load, so be patient...it's over 20 pages long! I'm actually looking at the Huntigton Club myself, my boyfriend and I met at OSU...I was looking at the Faculty Club, but this is much cooler and about the same price!