*Update*
You can check out my blog post which provides the ability to list and switch window layouts in Vs2008 and Vs2010: http://www.brianschmitt.com/2010/09/save-and-change-tool-layout-in-visual.html
*Old Answer Below*
If you are looking for a repeatable setup, then a Macro may be your best option. AutoHideAll may already be bound to CTRL+Shift+~ - I cannot remember if that is the default. If not, you can bind it in your Tools-->Options-->Keyboard dialog. In there you can also bind the Macro below to your F11.
Here is a Macro that will accomplish the layout for you:
Public Sub SetupMyPersonalLayout()
DTE.Windows.Item(Constants.vsWindowKindSolutionExplorer).Visible = True
DTE.Windows.Item(Constants.vsWindowKindSolutionExplorer).AutoHides = False
DTE.Windows.Item(Constants.vsWindowKindTaskList).Visible = True
DTE.Windows.Item(Constants.vsWindowKindTaskList).AutoHides = False
End Sub
This will show the window and then "pin" it.
Another option that comes to mind is to take advantage of the different views that Visual Studio offers (Standard, Full Screen, Debug, and some others).
Lastly, if you are on 2005 or earlier (or if you want to update the code) there is an add-in that will do it for you: http://www.codeplex.com/VSWindowManager