Do you want it to be a 3D plane? If so check out a profile. They aren't everyone's favorite to look at but they can be a lot of fun to fly. I really liked my OMP edge-540 and I hear the Mojo is a blast too. I used a .55-AX on my Edge but prfiles are pretty light so I'm sure a .46-AX swinging a 12.25x3.75 APC or similar would get the job done especially if you did some sort of pipe or something.

www.ohiomodelplanes.com
www.swanyshouse.com

If you are just looking for sport or precision then the GP Extra-300SP would be a good one. It's actually a capable 3D airplane but the .46 might not be enough for serious 3D so it would be better suited to more traditional flying. The plane is extremely stable, aerobatic and an overall pleasure to fly. I like it so much that I went out and bought it's 27% big brother.

http://www3.towerhobbies.com/cgi-bin...&I=LXVVG4&P=ML