For those people who like to tweak the Windows 7 GUI here's a handy free tool to change the standard, rather dull, Windows 7 blue logon screen:

http://www.julien-manici.com/windows...round_changer/

It's especially useful for IT people who want to personalise or brand the Windows 7 logon screen of their company or customers' workstations. When done tastefully it can be a very effective marketing tool.