FYI, you can make more room on your harddrive after each Service Pack + Windows Updates if you delete the $NtServicePackUninstall$ and $NtUninstallKBXXXXXX$ directories inside your Windows directory if you don't plan on uninstalling any of the updates (which most people don't do after it has been tested). That will save you a lot of space, since MS backs up every file that gets "patched" or replaced when installing a SP or Windows Update.