Maybe next time have it like this:
2pm: CSS (needs least amount of installing and won’t be late, will also pull gamers in early)
4pm: other game
6:30: dinner
730: CoD4
9: TF2 (gives 3.5 hours)
The time before CSS can be used to load the 4th game and the extra time before dinner can be used to load CoD4. We need all the time we can get for the CoD4 install.