Mac STL 'viewer' for coverflow &/or quicklook

Well title says most of it.
Is there any plug-in to view STLs in coverflow &/or quicklook?

(I'm still on snow leopard 10.6.8; can't see a reason spend nearly $400 to upgrade)

Following the thread, as I am also looking for a quick STL visualizer for MACOS.
The closest one I found is Pleasant 3D, but the integration with MACOs is far from wonderfull.

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Cheers,
Franklin Dattein

I tried Pleasant3D, but landed on (for now) Meshlab, since that will let me drag an STL into it. None of the others I tried allowed it.

Meshlab is a *tad* overkill for viewing, and has a few things that make it difficult; get a pop-up on each drag-n-drop, and to clear/delete takes two clicks. But its not meant as a viewer. I need to explore what it can do, looks like a lot.