Quidam: Yes -brilliant game.
I agree that for people who are very focused (ie follow the main-story line only) the game might end too quickly, but I just don't think that's the way most people would play it.
I also think there is huge replayability in this game, (ie. evil character)
martin308: that may be but securom is still drm/malware no matter what they use it for!
To be honest, If I were you, I wouldn't bother with Gears of War (1 or 2) because if you didn't like it the first time, I can't see why you would suddenly start liking it now. I'm certainly not going to give you any guarantees, I'm only speaking my own opinion of the game, which is that I think it is brilliant, and that GOW2 is likely to be even better.
On the other hand, if you haven't played much in the way of RPG's, Fallout 3 is probably a great place to start. If it turns out you don't like it, then it is probably safe to say you simply don't like that whole genre.