Here's one for all the people who haven't listened to Petra since the No Doubt CD! They're hanging it up this year (yes, they have been recording and touring steadily since 1972!), and they have recorded a live CD which will come out in November, and be released on DVD early next year. Here's my review of the concert that was taped for the CD, and here's much more information about the whole thing.
If you want to preorder the CD, you can order it from Christian Book Distributors or Amazon via the links on this page.