First of all I'd like to welcome you to Austin! I work with a lot of renters around town and I actually just rented a duplex in that area not too long ago. I would be more than happy to set you up on a search directly from our Multiple Listing Service and it will send you what's available now and also update you as new properties are listed! It's a great service and I think you'll really appreciate being updated automatically.
If you'd like to get set up on this search just call/email me and I'll get all the info I need to get you started.