I'd be looking at Extras. They really do everything well. In the composites, I have the Comp Arf Extra 330L, and my flying buddy has the Comp Arf Yak 55SP, we both agree that the Extra flies much better in every part of flight. It tracks better during precision stuff, rolls are more axial, and it's more stable in high alpha, and the controls have more authority in high alpha (especially noticable during things like harrier rolls.) Composite airframes are nice, but certainly consider wood ones as well. I'd rather have wood, but as luck would have it, the composite ones just kind of happen to me.

Another plane to consider is the Pacific Planes 260. It's a great plane with a good hardware pack, and is a really good deal as well. The company behind it seems to be very good to deal with, I've spoken with them numerous times and have always been impressed. I haven't had a chance to fly one, but I know someone who has, and he thought it was a great flying plane.

For power, DA100 with Cans or mufflers if you're buying new, otherwise, run what you have. If you are not in a sound sensitive area, just run mufflers, they are less money and easier to install. I'd stay away from the 3w106 if you are considering a composite plane, the engine is a bit longer than the DA that the planes have been designed around, and as such you have to buy a special spinner that drops back to make it look right. Not that it's not a good engine, I have one in a Cap, and it's great, I just prefer the DA.