I saw ZZ Top once and didn't have the best of times but it was more me than their show. I was still working for the radio station in Allentown and was with another dj accompanying our contest winners on a bus trip to Hersheypark. We had admission to the park and then tickets for ZZ Top's show at Hersheypark Arena. I don't know if it was riding roller coasters all day or the pitchers of beer I drank with my friend before the show, but I had a mean headache as the show started. The sound for the band was wayyy too loud. I like loud music but this was loud to the point of distortion and the bad acoustics in the decrepit arena (it opened in 1936) didn't help.
I do have a recent performance of ZZ Top's on a copy of the Eric Clapton Crossroads show I videotaped a few years ago and they are pretty damn good. I don't think you'll have sound problems at Innsbrook as the sound there is usually fine. Here's a video from their last tour, the classic "Got Me Under Pressure".
Also on Thursday night, fairly new (Carlile was named one of 2005's "Artists to Watch" by Rolling Stone) singer-songwriter and sometimes rocker Brandi Carlile comes to Groovin' In The Garden at Lewis Ginter Botanical Gardens. Doors open at 5:30, show starts at 6 with opener The Noises 10. The rockin' will be done by Brandi acoustically as this show is billed as "An Intimate Acoustic Evening With Brandi Carlile". Tix are $20. You'll dig Brandi if you like Melissa Etheridge, KT Tunstall, Elton John, Patsy Cline, Jeff Buckley, Indigo Girls, Dave Matthews, or Shawn Colvin. Here's a link to Brandi performing her song "The Story" acoustic: http://www.youtube.com/watch?v=Y72jRaoRvHs.
Friday and Saturday Dominion Riverrock is at Brown's Island. This is an adventure sports/music/drinking combo event and is FREE. The music on Friday night is provided by Rusted Root at 7:15 with Jesse Chong opening at 6. (You can also see Jesse later that night at Capital Ale House Downtown.) Saturday they will have bands playing from 10 AM until 4 PM. They'll also have events on both days such as Ultimate Air Dogs (the dogs take a running jump off a dock into a pool chasing something thrown), Freestyle Bikes, 5K Mud Run, Rowing, Mountain Biking and more. I had also read something about a pub crawl but I can't find it on the web site.
Sunday afternoon, you can see Carbon Leaf for FREE in an in-store performance at Plan 9 in Carytown. They'll start at 3 but get there early unless you want to be back by the t-shirts. They'll probably play some old favorites and some stuff off of their new CD, "Nothing Rhymes With Woman".