@Deozaan: I've found that in many cases, Wine runs Windows games better than Virtualbox. With Wine, at least you have access to the GPU (not perfect all the time, but it's mostly there). I can run Trackmania Nations Forever at good-to-acceptable frame rates, where doing the same on a VirtualBox instance of XP was just short of painful. If that's all you're looking for, give it a go, but for most mundane 'This-is-a-job-for-Windows' tasks, VirtualBox has served me just fine. I've also tried Qemu, and it works quite well, but you really have to be a bit of a wizard with the command-line options to get the best performance out of it.