I have an HP laptop and when I install Windows 7 x64 on it, the drivers
are automatically installed out of the box. All of them. Including webcam, graphics, I mean everything. You will be surprised at how well Windows 7 does with it's proprietary drivers. It would be a good idea to get the latest driver
off the manufacturers website for certain things like your video chipset and I don't mean Gateway I mean Intel, ATI or nVidia.