The one I have been searching for is Chemin de fer, an arcane version of baccarat still played in some Euro casinos, and of course, the version of baccarat preferred by Bond, James Bond:
http://www.bicyclecards.com/card-games/rule/chemin-de-fer
Despite countless google searches, I have not been able to find a version of this game online (Baccarat, not so) not sponsored by shady Italian casinos.
Not so obscure, but I also prefer Omaha over Texas Hold 'Em—cant find online tournaments though.
As for dice, I’m into craps (and would love to find free online tournaments), but is there an online version of the form of dice you see on TV and in movie where you see inner city folk laying cash on the sidewalk and bet on the dice thrown against a wall?
What about other dice and card games we don’t know about, but should?