Just found this - http://www.cleanmyquickstep.com/QuickStep Entrance Mat.htm[/QUOTE]
You could knock one of those up if you have a decent mitre saw using some carpet trimming strips. The type that are for carpet to tile transitions so you get a decent lip to fit to your floor.
That's what I did for our entrance and it looks , You just need to get a door mat to drop in the middle.