You sound like just the people who would fit into our small, mature, casual guild - Tranquility - if you are on the Republic side of course.
We are currently recruiting some new members to form a 16 man ops team- we have 12 or 13 semi regular raiders and we regularly run SM ops on Tuesday, Thursday and Sunday evenings.
We generally get have a relaxed attitude to the game, are always available for help and have no requirements on attendance. If you would like to know more contact Garvik, Iyeesha, Wert'en or Evanagh in game for a chat and check out our website at http://www.tranquility-guild.org.