I managed to grab the lightmaps out of the IBSP. I've always wondered what they looked like raw since they're all 128x128 so I had them exported to the disk.
Here's an image I compiled of all of them from a random map.
They look pretty neat, you can see some of the shadows from certain faces.
Anyways, here's q3dm17 rendered with lightmaps...it still seems a bit dim though.