You should make a EV trainer that can heal pp after its used up, make a shiny finder bot, fishing bot that heals pp after used up (cinnabar is a good spot for this), and possibly a safari zone bot that could catch chanseys/scthyers/tauros'/Kangaskhan.
I would also advice making a bot that doesn't need the download of any other program, and that could run in the backround and not take up your mouse. Also add a download link so the admins can approve of it.
Thats all i could think of atm.