Very nice stuff! I've always like the small planes, and have thought about building some myself over the years.
Depending on what you like, and on how far you're willing to go, you might take a look at these guys. A 1/72 Cessna Bobcat (Sky King's pland)? A 1/72 Wright (or any of several other very early planes) with full framing? How about a 1/72 Boeing 747? Or a De Havilland Comet? http://www.aim72.co.uk/
I will warn you, though - they ain't cheap. Still, it's fun to look and dream.