Features such as: aero snap, aero peek, aero shake, Windows 7 boot screen, Windows 7 login screen, Windows 7 sounds, Windows 7 cursors, Windows 7 taskbar, Windows 7 wallpaper, Windows 7 sidebar, Windows 7 progress dialogue box, Windows 7 shutdown / log off / restart dialogue box, Windows 7 about windows box, Windows 7 system properties dialogue box, Windows 7 volume control window PLUS loads more mods!
Well here is a post which can help you do just that !
You can pick what features you have. I personally only use a few.
To learn how, follow this XP tutorial / Vista tutorial by VG. I take no personal credit for this tutorial and did not see the need to do my own as the latter is just that good =)
IMPORTANT NOTES:
You can install Tuneup Utilities to easily apply the login and boot screens; then once applied you can uninstall Tuneup Utilities and the screens will stay ... however best test that they work / you want to keep them before uninstalling Tuneup Utilities ;)
ISSUES / FIXES:
1) QT Addressbar does not work well with the Windows 7 themes due to activation of the x-mouse features ... read below to understand and even fix this issue.
There is a bug in which the QT Addressbar does not work correctly when installed along side the Theme(s) ... i.e. When you select the first option and then scroll over the drop down menu for the directories, the mouse pointer 'focuses' the window and brings it to the front (i.e. activating it).
TO FIX this install Microsoft PowerTool Tweak UI and under the mouse settings; X-Mouse ... untick 'Activate follows mouse (X-Mouse). Click 'Apply' and the setting should be instant; if not simply restart =)
This then allows you to have the proper functionality of the QT Addressbar.
You can always use the ALT + TAB feature to change focus to a window of choice =)