Scott, for developing web testing with C# and VB.NET there is also a new tool named InCisif.net. It has a different API that WATIR/WATIN and is worth a shot.
Here is the sample in C#+Incisif.net that you wrote in you article for WATIR/WATIN.

[InCisif.net.Library.Test("SH and google...")]
public void MyTest(){

using ( InCisif.net.Library.Test t = new InCisif.net.Library.Test(Language.CSharp, this) ) {

Page.URL = @"www.google.com";
Page.WaitForPage(@"www.google.com");

Page.Control("q").Text = "Scott Hanselman";

Page.Control("btnG").Click();
Page.WaitForPage(@"www.google.com/search");

Page.Control("Scott Hanselman's Computer Zen").Click();
Page.WaitForPage(@"www.hanselman.com/blog");

t.Passed = true;

}
}

http://www.InCisif.net