I would say Cabella's. They have many nice BP revolvers and their sales are nice. Get yourself a nice Pietta 1851, 1858 or 1860 instead of those guns pictured. Stay with steel frames as Hawg said.
I bought both the 1858 and 1860 and have absolutely no regrets. Before I did so I studied this forum to determine everything I needed to go with it. The fellas here put me on the right path. I've shot my 1858 several times now and love it. Will shoot the 1860 soon as well. Just wanted to get used to one gun at a time.