Shviller mentioned Anim8or in chat, for which I'm very grateful. Haven't had much time to try it out but the interface is very clean.
Analogy for Blender:
<img src="http://www.ohgizmo.com/wp-content/uploads/2006/08/swiss-army-everything.jpg">
It's what I'd be trying to learn if I weren't spending every spare minute with Construct
(I also lust after Swift3D for it's Flash-integrated rendering, but I gotta save up some..)