Ok, so far I’ve rigged a total of two of my models. A stick figure and an Intrepid Piggy. I’ve modeled a plane and I want to know how I should go about rigging the landing gear. Any tips or links to tutorials would be welcome.
I would go with an Armature, bones, constraints and drivers. 
Hello, There are two plane tutorials on my website under the Blender section, one deals with control surfaces and undercarriages, the other just with an undercarriage I did for another BA user, maybe these will help you - I would know better if you posted an image of your model.
The website is here:
http://www.lafavinie.f2s.com/blender/index.html
Cheers, Clock.