Qn regarding Steam:

[Ryllharu]

Where do I look for the Fallout Mod Manager? I tried looking in Library/Tools and does not see it.

Whats more, we dont get retail CD-keys, which pretty much locks us into using only Steam client to launch the games. I think I would only buy Steam games only if it is at least 66% off.

Offtopic, but http://fallout3nexus.com/ has all the mods you need for fallout 3. You will need to make a free account to get the bigger mods and some of the texture replacers due to their age restrictions. Don't go too crazy though, I had in the range of 8 gigs of mods installed, eventually making the game too unstable to play. :3

If you want to make your own, Bethesda's G.E.C.K. website has the toolset and what you need to get them running on their own.

Back on Topic: A lot of my bigger name games came with the CD Key. There is a link on the right sidebar of the "Detail" view interface. Dawn of War II, Fallout 3, Dragon Age: Origins, etc.