Good advice here so far…

My ideas:
+ pick up an Austin Chronicle
+ sunset at Mt. Bonnell
+ sunset at Oasis
+ nice drives on 2222 / 360 / 2244
+ BBQ in-town – Rudy’s
+ BBQ out-of-town – Salt Lick
+ Mexican Martinis – Trudy’s on 30th (college hangout), also Spider House coffee up the street
+ Tex Mex – Hula Hut on Lake Austin
+ Mozart’s Coffee (next door to Hula Hut)
+ Tex Mex – Chuy’s on Barton Springs (Elvis and hubcaps for decor)
+ Whole Foods on 6th Street (biggest/coolest grocery store ever)
+ The Domain, Mopac(Hwy 1) and Braker/Duval (high-end shopping if you are into that)
+ 4th street (warehouse district)
+ 6th street (bars, bars, bars!), preferably on a Fri. or Sat. to get the full effect ;-)
+ South Congress (SoCo) – tons of funky shops and restaurants
+ Town Lake Hike and Bike Trail – walk it, jog it, grab a canoe, 10+ miles of trails
+A few neighborhoods to check out: Travis Heights, Hyde Park, and Clarksville – spendy!
+ Alamo Drafthouse for beer+food while you catch a flick (fried pickles available :) ) – Alamo @ The Ritz on 6th just “re-opened” recently

I’m sure I’m forgetting tons of stuff, but it’s a really great town.

Hope you have fun this week!

Oh, and btw…The Driskill is a wonderful choice. You won’t be disappointed. Great hotel, excellent location.