I always lol'd at the spiders wearing "predator" masks. Leading up to the "Final Boss", which as far as I know only the commando can easily solo. It respawns fairly quickly, and drops some really good weapons for a newbie (I eventually looted a pretty nice rifle). Again, I recommend not clicking on "complete" for any of the quests, but just x-ing out of them and waiting until you're on Tatooine to complete them, for lots more XP.