http://www.fallout3nexus.com/downloads/file.php?id=8340 (energy weapons and explosions), http://www.fallout3nexus.com/downloads/file.php?id=2672 (lighting in general), http://www.fallout3nexus.com/downloads/file.php?id=10607 (not exactly looks, but weather changes the feel of the wasteland quite drastically), http://www.fallout3nexus.com/downloads/file.php?id=7670 and last but not least, http://www.fallout3nexus.com/downloads/file.php?id=12056. For people http://www.fallout3nexus.com/downloads/file.php?id=6341 with (or without) body replacers of your choice (for me Breeze's for males, and Type 3 for females).