If you're a big festival fan, you've probably already got April 25-27 of next year set aside, as we told you recently that that's the long weekend over which the 2008 incarnation of Coachella will be happening. Go ahead and get that highlighter back out and take it to your calendars, as we now know when South by Southwest is going down next year. The music section of the sprawling, multi-media fest will occur March 12-16. No known bands yet, but you can check in over at the fest's website for updates on that as well as info how to attend the fest if you're in a band or just an indie rock fan.