I want to use a windows Driving Simulator on my iMac, probably using Bootcamp. The system requirements are Graphics - Any 64MB 3D graphics card or above* *NVidia GeForce FX or higher / ATI Radeon 9500 or higher. Laptop versions of these chipsets may work but are not supported. Other integrated graphics chipsets are not supported. I have an 20 month old iMac with a ATI Radeon HD 2400 XT. Will that do? I have absolutely no idea about this stuff!