Fallout 3 is probably one of the games I'm most looking forward to this year. The thing is I've never played Fallout or Fallout 2.
I own them - I've just never actually played them.
Right now looks like as good a time as ever to dust off the old CDs. A group of independent modders recently released the "Fallout 2 Restoration Project" and have just updated it to a 1.1 release. The Fallout 2 Restoration Project essentially sets out to add content to the game which, for whatever reason, wasn't originally included.
Listed as both a mod and an expansion the Project apparently contains several new areas (large and small), new dialogues, and even expanded portions of existing areas.
It sounds like the folks behind the Project are really dedicated and have done some great stuff here - I can't wait to check it out.
You can check out the official Fallout 2 Restoration Project 1.1 Thread over at No Mutants Allowed.