[LAD] Setting fonts in pixels rather than points

I am trying to fix the size of my UI to be independent of the selected WM theme. I have a gtkrc (based on the "Ia Oya" engine) which will do that - except for the font sizes which will vary dependent on how screen resolution is set globally. One work-around I have found is to use a font that has only one size. Of that kind I have found three: "Terminal" (medium sized, looks a bit like a flattened "9x15"), "Teletext" (like "Terminal" but wider), "Outcast" (small, "Tek"-like slanted) and "Caption" which is again like "Terminal but twice the size and more polished. Are these fonts standard in any distribution? Or a result of the dependencies of whatever packages I might whimsically have happened to have currently installed? [Dots per inch makes little sense when the target could be a cinema sized 800x600 projector as well as a handheld with similar resolution]