Wow, same background. Tri-X in a Pentax SP-500 developed in the basement. One thing I miss is that Tri-X had the most amazing dynamic range. I don't shoot enough B&W on the E-P2 to see how close that would be.<rant>
I am not sure what this obsession is with high ISO performance in modern digital cameras. I spent all good deal of my photographic life shooting Tri-X at ASA 400 and on occasions pushing it one stop and now we have cameras with ISO that will got to god knows how high. In this digital age I often shoot at ISO 800 and on rare occasions I do push it to 1600 but guess what. The noise I get now is far less than the noise/grain I use to get with Tri-X and I am happy. I have friends that complain about noise at high ISO and then take perfectly noiseless images at low ISO and run then through software and add grain, for effect … go figure!