I have a 486DX2 (67Mhz) that I'm turning into an old-games computer. I have Doom/Doom II/Heretic and Hexen and I would very much like to put them on that computer. Which sourceport(s) would be the best choice? I don't care much for new level-designer features or even multiplay, since the computer is not connected to a network. I'm looking for speed, standard features (running the original games with sound, no graphical bugs etc, higher resolution/detail if the computer can handle it ;-)) and als