Hey everyone. It took me quite a while to find the answer to this one. I recently upgraded my older laptop to a new Windows 7 OS based 64 bit core I7 Dell. I reinstalled my copy of Fallout 3 GOY edition, and it would crash upon startup, as soon as I clicked "new game". After reading hundreds of posts about Fallout 3 crashing, I finally came across this you tube video that showed me the fix. http://www.youtube.com/watch?v=4GN5HbMsMVE Basically, the original Fallout 3 (and Fallout 3 GOY edition) is missing the d3d9.dll file in the Fallout 3 directory. Downloading this dll and putting it into the Fallout 3 directory fixed this for me instantly.
Hope it helps!