The Fallout Collection: http://www.play.com/Games/PC/4-/1021951/Fallout-Collection/Product.html?searchtype=allproducts&searchsource=0&searchstring=Fallout&urlrefer=search
You can get it for like five pounds and I've never played the original two games. But, do they run on Windows 7?
Normally they don't.
You have to have apply unofficial patches.
I'm playing Fallout 1 and 2 that way.
If you're having trouble you should google 'Fallout Revived' it would help you out if you don't know how to apply the patches.
Edit: I'm also using a 64-bit computer.