I've written a review of Civilization 4 over at Suite 101.
You're going to be seeing a lot more stuff there from me in the days to come, including reviews of games that are NOT several years old (whoa).
In the mean time, let's look at Civ 4 while we drool over the soon-arriving Civ 5, which arrives in 39 days, 11 hours, 8 minutes.
Not that, uh, anyone's keeping track.
Go read! It's good for your brain!