1998/09/09 Nick Cave and the Bad Seeds (who opened?)
2002/03/18 Bush/Default
2002/10/20 Sleater-Kinney/The Quails/V for Vendetta
2003/10/20 The Mars Volta/Saul Williams
2004/06/09 Wilco/The M's
Runners up (in no particular order):
2002/01/30 The Charlatans UK/Starsailor
2002/04/30 Garbage/Abandoned Pools
2004/04/01 The Crystal Method/DJ Hyper
2004/04/22 Sleater-Kinney/The Thermals
Only been hitting the local concert scene for a few years obviously. Wish I had a time machine so I could go back and see the great concerts I've missed at the 9:30 Club, like the Smashing Pumpkins, Radiohead, R.E.M., the White Stripes, Flaming Lips, et al.