im looking into buying a cheap PDA off amazon or ebay i was thinking maybe a zire 31 any one ever used a zire 31 any ways im looking for a PDA that includes an expansion slot so i can add Additional memory cards it doesnt have to have wifi im just looking for a decent but cheap PDA so i can play a few games on it as well as use it for info and reminders let me know which ones are worth the price by the way i prefer a color screen but plack and white is ok thanks