If you want RTF, or ARF go to Towerhobbies.com or Hobbyzone, or any of the many good hobby stores online or locally, get a Hangar 9 Arrow, or Alpha. (Actually RCken has a good list of trainers and second planes in another thread)

If you want to build on a budget, and get a decent plane go here: [link=http://www.spadtothebone.com/freeplans.htm]http://www.spadtothebone.com/freeplans.htm[/link]

mouse over the "trainers" button middle of the main link bar, and look at the "Debonair". All the reviews Ive read, and vid clips Ive seen say its a good one, Im building it too!