Downloaded all of the DLC for Borderlands this weekend and started playing through The Zombie Island of Dr Ned and more fun is being had. The change in setting is cool as well as the fact that 95% of the enemies charge at you since they have no weapons unlike the regular non undead enemies of Borderlands. It is more a case of trying to manage the horde coming at you rather than taking out enemies that have a direct shot at you and keeping behind cover.  For the moment I'm doing this on playthrough 1 which means the enemies are way underlevelled for my character so I'm tempted to just switch to playthrough 2 to try and balance it out a bit more.