My BB has equal sized Wii and 360 sections, though the Wii section is cut in half and divided between two aisles. The DS section is about the same, I guess. The PSP and PS3 sections are also about the same size, with the ps2 section being a bit larger than either.
As for the actual games, they just keep them on the shelf at my BB, in clear plastic cases. They don't do any of that cages crap, at least not with software.







