Advice on Sony Laptop pls

After being away from FS9 for a few years I am about to buy a laptop and am biased toward Sony just based on past experience. Appreciate any feedback on whether the specs below would support FS9 with smooth performance, or if I need to go Intel or upgrade the GPU. I fly mostly DF 727 and LD 767 into major airports with add-on scenery and moderate AI. Plan to add mesh, REX, GE to the mix, probably not much more.Any input greatly appreciated. Regards, Roy SONY VAIO E Series VPCEF37FX/BI NoteBook AMD Turion II Dual-Core P540(2.4GHz) 17.3" 4GB Memory DDR3 1066 500GB HDD 5400rpm BD Combo ATI Mobility Radeon HD 5145