Austin, Tx wedding venue?

I'm looking for an inexpensive, but cool venue for a wedding in Austin, Texas. We live out of state so are trying to find as much info as possible online. I've found a lot of great choices, like Zilker Clubhouse. I think that's a great option, but would also like to consider renting a large house or private property to accommodate the ceremony and reception. I think set up and storage of wedding items will be easier if we can rent a place for a few days. I've looked through some of the vacation rental websites, but haven't found anything that looks like it could hold a wedding (of approximately 100 people). Any suggestions?