Brown Shmown!
I've spent more than enough time trying to get RID of brown interiors -- Everything that Toyota made in the mid-early 80's seemed to be full of it, and I've owned a few... It's all personal preference, though.
Before you go spending money on a new dash or doorpanels, you could change the colour of the ones you've got. Up here, Canadian Tire sells some great stuff... Interior Vinyl Paint (or Dye? Can't Remember what the spray can says) basically paint specifically for interior panels. Sticks like glue to just about anything plastic (Even padded/flexible stuff), and doesn't chip off like regular paint. Napa or Autozone will probably have something similar, or check out a store that caters to ricers -- those guys are always painting something inside.
-Al.