I despise dual boot systems, given the ease of rendering both inoperable. My suggestion would be to backup your XP install to an image, and then download the 90 day trial of Windows 7 Enterprise, if you don't have any Windows 7 discs already. Give it a shot and see how you like it. Then you can purchase Windows 7 and install your legit version...or roll back to Windows XP if, for some reason, you don't like it.