Okay. Since you have never been, I HAVE to tell you about a few places you just gotta check out. There are quite a bit and I don't know how long you will be there. We are planning on going for a little trip sometime in the next month. Not sure when though. It's only between 3 and 4 hours for us.
Of course, there is always the capitol and
UT. Me...I'm an Aggie fan. I can pass on the UT campus. IF you love chicken fried steak (and I am assuming since you are in GA you can appreciate a good one), I have heard that Threadgill's has the absolute best. And they have a vegetable list a mile long.
Brenda, you should think about taking DD there.
I am a little biased because I think this place near me, Babe's, has the best c.f. steak and fried chicken, but I'm willing to try it out.
Next, you mustn't miss the bats. The largest urban colony of bats around. Mexican Freetail Bats I believe. Numbering between 750,000 to 1.5 million at peak. They are under the Congress Avenue Bridge. You can take a seat on the grass next to the river a couple of hours before dusk, play around, and wait. Once dusk rolls around, the bats take flight. It's an awesome sight.
And don't miss Lake Travis if you can manage it. If you and DW are going sans the kids, if you are into it, I have heard there is a beach somewhere on the lake that is "free". As in clothing optional.

You'd probably never find me there. And good thing as it would make being on the ship awkward.
I'll try to think of some more. They do have a hockey team but are currently without a facility to play in so they won't be playing the 08-09 season. As for the Stars, I went one time and hard a 3rd row seat too!!! From the TOP!!!!
Oh...and if you are into it, there is always 6th street. Home of bars and clubs. Austin IS the Live Music Capital of the World. AND THE most liberal place in Texas. You will LOVE it!!