S&P and SQ are exclusive except that they pull from the same token pool (in-game store).
For SQ information, I would really suggest going to their boards for info as the game is quite complex with assorted class builds and what not.
As just a generic idea though, with the starting 3 that you can have in your party, a guard (reactive DPS/tank), an archer (ranged DPS), and a healer (... healer) trio worked well for me. Be sure to check into recycling as it took a while for me to grasp.
Another thing of note is not to neglect honor fights or ladder fights. I did this somewhat and regret not getting involved in those right from level 1.
