The Lanier Shrike .40 is going ARF. It's not a pure delta like the Arrow or Dust, but it's ready built.
http://www2.towerhobbies.com/cgi-bin...?&I=LXLDE2&P=7
I own a Shrike .40 (and also a Shrike .15) and love it! Defintely not as fast as the Dust (which I have several of) with the same given engine, but much easier to see the orientation of given the large vertical tail fins. There have been times when I've almost crashed the Dust, because it was hard to see which side was up when the plane was at a distance. With the big vertical fins, you don't have that issue with the Shrike. But admittedly the Dust looks a lot cooler on a low high-speed pass over the runway.