Yip, I've also restarted NV as it's recommended that you have a relatively high level character before going across to the DLC. I missed out on a lot of stuff in my first play through because of a low speech skill...couldn't get a lot of the stuff I wanted done. Had that massive energy gun in the science station with the SunRay death beam thing...lol it's been a while since i played. Can't remember the names of stuff. Going for a more sneak and gun orientated character this time...with a little more charisma!