I've attached a screenshot to the post. The font I want is in the terminal in the upper left. It looks quite similar to the default font for xfontsel (the one the headings are displayed in), only a bit larger. For comparison, rxvt -fn 12x24 is at the lower right. It seems to be the right width, but taller, and has serifs. If it helps, the original screenshot, which I couldn't upload because it broke the 256K limit for uploads, is available
here. The display, by the way, is 1915x1430. That's what what the xorg.conf xorgsetup created gives me with an ATI Rage 128 card.