Hi If your using virtual machine to multitask projects. What is your operating system recommendation for running 8gig of memory? Every month I switch from XP Pro 64bit to Windows 7 64bit and can't decide which is stable and faster. Here is the reason. XP 64bit is good but there is no hybernating option. Windows 7 64bit is fast and it does have a hybernating option but it is also a MS trail version. What should I choose?