Old Venus is not your father's retro-futurism. It's the Venus of the pulps, yes, but imagined as if that Venus--swampy, syrupy, paleolithic--had turned out to be real. Something that the evolved science fiction of today could still sink its teeth into. It's a fun, playful, thoughtful anthology including stories by writers ranging from Tobias S. Buckell to Joe Haldeman.
It's netting great reviews, too. (You can read some of the Usual Suspects at that Barnes and Noble link, and here's Russell Letson's take.)
Seriously, this is awesome and you want it.
And now, to try to screw my sick head on and finish this library story.