Non-resizable windows with windowStyle=None

Basically, I want to create a window that looks like the following: alt text http://www.thex9.net/screenshots/2009-10-15_1347.png

However, the window shouldn't be resizable (the one in the screenshot is) but must retain the glass border. The XAML for the window in the screenshot is as follows:

<Window
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    x:Class="WpfApplication1.MainWindow"
    x:Name="Window" Title="MainWindow" WindowStyle="None">    
 <Grid x:Name="LayoutRoot"/>
</Window>

Is it possible to create a window which looks similar to the one in my screenshot but is not resizable? Any help would be very much appreciated.