I'm currently writing a 3D game in C++ with OpenGL and I'm coming to the part where to load 3D models in. Therefore I'm looking for popular file formats and techniques to

* display static meshs and
* render animated meshs.

I've already found quite a large number of possible formats and techniques, like keyframe animations, skeletal animation, MD2 up to MD5, 3DS, X, Collada etc. pp.

For simplicity I'd like to use a format (and technique) that allows both, namely static and animated meshs. So my question is if _one_ format is suitable for that task and which one you'd suggest. And to clarify a bit: I don't need super-smooth animations or brandnew features.

Sidenote: Because I'm a blender fan (but _not_ an expert ;-)) it'd be helpful if it can be used with that -- but of course that shouldn't be the show stopper, here.