I'd encourage you to consider Heralds of the Voxyn. We're a fun-first, friendly guild, and we do both progression raiding and casual raid and flashpoint runs, and have lots of different playstyles, classes, levels and experience. We're at hov-swtor.com.
Feel free to register on the Web site to check us out, or drop me a mail/tell ingame.
Animae, Senior / PR officer
(aka Animara, Odani, Vi'ta'ra)