What about a Pizazz? It's a little cheaper than a UCD3D. I have one with a Saito 72. As long as you keep it light it will really tear it up (I think everyone says that about 3D planes-Duh). I use an APC 13x6 on mine and it hovers great. The throttle response is unbelievable, as long as you use a 6v rx batt to spped things up.

I've had nothing but great success with mine. Here's a pic: http://www.olypen.com/gblight/rc/pizazz.jpg

That pic is actually one of the first Pizazz I had. My new one is slightly different. Added graphics, no carbon fiber gear. Same idea though.