Im only on my 2nd play through. Had it on the ps3 and xbox but thinking of getting it for my PC before NV comes out. I want to try the mods and be a somewhat evil character. Not tried that yet so that should be fun, also thinking about getting the first two. Theres just so much to do in it, been playing for 70+ hours and only maybe a 3rd of the way through.
The modding community for Fallout 3 is absolutely fantastic just as the Oblivion Mod commuinty is. There are some wonderful mods that add a lot of very cool material to the game and make it like new all over again. I've had a ton of fun just trying them out. I tend to stay away from stuff that makes me overpowered as it takes the fun out of the game but there are so many good mods that add a ton of great features to the game. Everything from graphic improvements to new weapons to housing, new objects, new areas opened, new characters, quests, ect, ect, ect. Way too much to mention it all here. I applaude the modding community for the great, amazing work they do. There are certain mods I now feel like I can't do without. It's the only reason I prefer the PC version over the console versions on this game. I play most games on my consoles due to how trouble free they are. But the mods are too good to pass up.