I have a few large-ish species... Most I would consider on the smaller to mid-range end.

Here's one of my Peppered Roaches (A. tesselata). The same as Matthew mentioned earlier:


I don't have any photos of my Malagasy hissers on my desktop, but I can upload some later if interested. There are also 'dwarf' hisser species (i.e. Elliptorhina sp.). Here is a species I would consider in the mid-range, Orange Head (Eublaberus posticus).