In a couple of posts, I've mentioned http://www.juststrings.com . I said the only thing they DON'T have is Rotosound NICKEL roundwounds. My mistake! They DO carry the RB40, RB40-5, RB45, and RB45-5 sets . NO, Sandra or Jim from JustStrings didn't tell me to shut my yapper. I did a more focused search at their site and realized the error of my ways . So now there's no reason to go anyhwhere else! (Please don't shoot me Herm ).