Hello there! I am interested in purchasing a handheld, but am COMPLETELY out of the loop on what's good, what's not, what's new, what's old. I would basically be using it as an electronic calendar, reminder, address book and notes/memos. I am somewhat familiar with the Palm Pilot, but as I have been researching, I see that other people make them such as Sony, Casio etc. Any thoughts on coolest ones for the best price? I'm also interested in purchasing a used one - know of a good place to get good deals?