Wow lot of info there, going to try and respond to all of it.
Thanks for the tips, I've hit 52 but I want to finish my story quests before going to makeb (just about to head to corellia). Shouldn't take too long. I've worked out the right method of using my commando, I just need to tweak his gear a little as you say. So focus on the basic equipment but classic works well too?
And should i be joining an 'op' guild or something similar?
Again, many thanks!