Is this laptop good for playing games like GTA 4 and 18 Wheels of Steel Extreme Trucker - Lenovo Y550 Intel Core 2 Duo p8900 2.54 GHz 4GB DDR3 RAM 160GB hard disk NVidia Geforce GT 240M

I believe it is. Still not too sure how it'll stand up to the more demanding games but for GTA4 it should be fine (sorry, don't know of 18 WoS Extreme Trucker). The fast processor and DDR3 RAM are a good choice, however, looking on NVidia's site, I think the 240M GT uses the system RAM but I'm not too sure. Either way, NVidia claims that it can play Terminator Salvation and Darkest of Days so it should be fine (4GB of DDR3 RAM is plenty anyway).