A feature in the Starabout the homes of famous London authors has a nice little section on the Dickens Museum, with good photos of some of the memorabilia there: Dickens's chair, and a locket with his picture on it.
I've just run across a really nice website called Dickens Prints, which sells prints of illustrations from eight different Dickens novels. You can buy them framed (£40 apiece, or about $65), or just mounted (£25, or about $40.50).
The Leicester Mercury has a photo of an 1858 advertisement for one of Dickens's readings of A Christmas Carol. Can you imagine what it would have been like to open your newspaper and see something like that?
The British Library's Discovering Literature project, which puts online "a wealth of the British Library’s greatest literary treasures, including numerous original manuscripts, first editions and rare illustrations," along with articles by experts, is well underway. And Dickens is well represented! Go here to start exploring.