Graphical/textures/meshes, interface, bugs... I grabbed the game in the Steam sale and I'm looking to pimp and smooth it out before starting. Something that makes the UI bearable would be nice, similar to Sky UI or Immersive HUD. Higher poly player and world meshes would be nice, too, as well as better environment textures.

So far I've downloaded the Updated Unofficial Fallout 3 Patch, NMCS Texture Pack, An Eye Improvement Mod.

Before you add any mods you need to follow these guidelines: http://www.gamesas.com/topic/1465357-installing-fallout-3-with-windows-78-and-xp/ and http://forums.nexusmods.com/index.php?/topic/652876-fallout-3-modding-and-you/

You need to keep in mind that being able to run Skyrim or New Vegas on ultra settings has no bearing on your abililty to do the same with Fallout 3. Even though the game engine is the same, they are different games, made at a different time, with different technology.