On the properties for Taskbar Appearance I have selected:
Lock the taskbar
keeps the taskbar locked at its current position on the desktop
prevents size and position changes of any toolbars displayed on the taskbar
Autohide the taskbar
keeps the taskbar hidden until you move the cursor to edge of the screen where you have the taskbar anchored
Keep the taskbar on top of other windows
Group similar taskbar buttons
works well for me particularly when I have lots of IE sessions open
Show Quick Launch place shortcuts to your most used programs making Start | Programs less heavily travelled
I really like the dummies series. Very well written.