Windows Vista

For those of you who might still ignore it, on January 30, all versions of Vista, from basic to ultimate will be available in 2 versions: 32 & 64 bit. The main difference is that 64 bit versions support much more ram (4GB versus 128 GB, if you find the motherboard lol). For those who will go for the 64 bit version, be aware that you'll need all your hardware and software to be 64 bit compatible.