but after the Den there's no where else to go.
trololololol? After the Den you can go pretty much anywhere you like. Modoc, Vault City, New Reno, even Broken Hills or NCR.
I don't know why people complain about the gun, I think most of you don't realize that F2 isn't made to be completed step by step, city after city, in a linear way. You want a gun you get a pretty obvious first one in Klamath, you want something better you can get a very quick one in the Den with Lara's chain quest. Personally when I used to play back in the days, I'd nearly always go to the Den and *spoiler*
steal Metzger's shotgun and ammo, that makes a pretty awesome starting weapon. Also, at the time I really didn't follow the "proper" course of action and used to skip from the Den directly to New Reno, where I used to just blast Eldridge's head off and loot him for his whole gun-shop inventory :P If you want to be a little more civilized you can do the New Reno families' quests (avoiding the last ones so you don't become made man) and you get a pretty good amount of money and exp, for a lowbie character.