Ok Ok we hear ya.

To answer the question. Yes! Sprites are easily imported as one entity type. It's essesntially a bitmap placed in the 3D environment and is easily animated.
The sprite itself can be an animation, and it can itself be animated: be moved, scaled, change transparency, color, whatever you like. You can also easily interact with the sprites in your 3D environment, for example the mouse can detect if it is over a sprite (or model) entity, etc.

I think this software would work out well for you.

cheers,
tindust