Planning the gaming stream need not be difficult, if there is a convention theme, you may wish to think about tournament or featured games that fit the theme.
Meet with the rest of the concom to discuss the gaming space. Note that past experience has shown that gaming in a through-way is not viable, nor should the gaming space be far removed from the main con spaces. The ideal gaming space is located adjacent to (but separate from) the main thoroughfare, is securable, and has a smaller separate adjacent space for RPGs. Space for at least 7 tables is needed for a local con, and 10 for a NatCon. More is better.