I beat Fallout 3 in two days... then continued to play it over three consoles for the next two years, beating it I don't know how many times. Story's a story. So yeh. But it was fairly epic. I decided to do what was probably the "middle-of-the-road" ending, and I'm not really spoiling anything when I say that I helped Mr. House. You have to help a faction take over Vegas, after all. He's a benevolent dictator.
Now I can start over and do things the propah way, lookin' in all the nooks and crannies for cool shit. I never found a snowglobe, either.