An easy way to give your Windows Vista box a clean look is to remove the application labels on the taskbar.  With a registry hack you can make your Windows Vista taskbar look similar to the Windows 7 icon only taskbar.

1. Click on the start button and type in regedit and hit Enter.
2. Navigate through HKEY_CURRENT_USER\ControlPanel\Desktop\WindowMetrics.
3. Create a new REG_SZ value and call it MinWidth
4. Set the value of MinWidth to 56
5. Restart
   

Enjoy!

Update: I changed the MinWidth to 56.  Thanks for the help Gem. -Steve