Anyways, I found some great little places plus I learned of locations that I didn't know would accomodate events.
Magnolia Plantation
This historic and elegant location defines quintessential Charleston and is the premier backdrop for any southern event. Offering expansive views of grand Live Oaks, manicured gardens and an open pasture from the beautiful Plantation House Veranda, this site is rich with history and tradition. Located in the heart of Magnolia’s garden, the Veranda provides an unforgettable setting for your special day.
http://www.magnoliaplantation.com/events/veranda_events_weddings.html
The River House
Perfect for fewer than 100 guests, the River House is a waterfront space overlooking the Ashley River. The venue is a private building on the lush grounds of Lowndes Grove Plantation, the last of its kind on the Charleston peninsula. The space is perfect for everything from a peaceful retreat, a business meeting, a luncheon, or a quiet wedding ceremony with a gathering of close relatives and friends.
http://www.pphgcharleston.com/venues/view/river_house
Gibbes Museum of Art
The Gibbes’ Beaux Arts-style building offers a wide variety of spaces that can be tailored to your function, from a collection of galleries with intimate spaces to a 12,460 square foot urban courtyard. The museum’s unique spaces and rich art collection bring an artistic flair and an added dimension to
your special event.
http://www.gibbesmuseum.org/visit/calendar.php
South Carolina Aquarium
When the South Carolina Aquarium closes for the day, a unique event site opens. As your guests arrive on our Riverside Terrace, they will experience Charleston from an entirely different perspective. Gorgeous views abound at the South Carolina Aquarium – both inside and out.
http://scaquarium.org/Events/default.html
So these are just a few of the great places I came across during my trip to Charleston. I can't wait to go back and hopefully do an event there soon!