Its very common for high level rts players to also play poker. During the time of starcraft broodwar before starcraft 2 launched there was not much north american/european interest in the gaming scene. Professional players use to play poker by day to make money and starcraft by night to practice for their next tournament.
You know, that's a really interesting observation. Having lived across the hall from day[9] in college and seen him play both Starcraft and poker, the intense concentration, and frenetic clicking, and split-second analysis involved in both activities are really not all that different. :)
In fact, one of the first foreign (non-Korean) StarCraft players to move to Korea went on to become a pro poker player (Bertrand 'ElkY' Grospellier: http://en.wikipedia.org/wiki/Bertrand_Grospellier)
From what I understand, many of the Korean pros get into online poker as well.
