Just to clarify, this thread is posted like 5 months ago and surprisingly somebody posted in it. Alot has changed in that 5 months, (you can read post#5 for more info) and I can still say that I still do good in endgames.
No, I'm not member of a club. And I haven't heard of any nearby my place. But the university I'm attending have a Chess Institute, a building with the sole purpose of chess. I've been there and played some games, the players are really good. I'd check if they accept membership, but AFAIK, everyone can just go walk-in and play chess.(Does that make it a club?LOL)
There are also some chess varsities on college.