Hi KarMen13.
If you do decide to get the laptop, make sure you get the optional Nvidia 8400M. The standard integrated GPU is too weak.
Otherwise you should be able to play all those games, not at full detail settings, but they'll play.
Demigod may lag a fair bit, as the engine is very CPU intensive.
Also, keep in mind that laptops aren't really upgradeable and can't hold a candle to a desktop when it comes to price/performance. So unless you really need the mobility, go with a desktop.