I've had a Diablo 2000, wouldn't recommand it for pattern flying....
The Xtra2000 is a good plane, but needs some building experience
Protech in Belgium makes the ARF Tojeiro wich is pretty good also I think (in the lower price categorie)
but I don't know if you'll find it in the states?!

I fly my ZN Enigma with an OS160FX.... super combination
can't you find any second hand model ???

good luck,

Bert