You can find Pokers at mechanicalkeyboards.com. They only have stock of black switch models, but the switches are easy to swap in a Poker. They also carry the Pure, which was supposed to replace the Poker.
p.s., aka Patrick, has Pure's on sale right now in his vendor subforum
here.
Oh, and thoughts about it. Well, it uses the standard layout, so new keysets are easy to use without compatibility keys. I love the Poker. I have two right now, both with MX Reds.