Uh, you're right! ^_^
Thanks for the correction! /WR and /PSEN must be both at 0...and this is not an AND! :)
Well, but the remaining part is correct? I mean, to access the 2 I/O devices is this the right way? The RD pin isn't necessary?
Thanks again! :)

P.S.: the capacitor on the reset...do you mean to put a capacitor in parallel to the reset push-button? What kind of capacitor?