I would be totally lost without mine. It has my schedule (UCSF changes the class schedule daily), all sorts of reminders to myself, my to do list, phone numbers, and as an MS1, I find having epocrates and some of basic (free) medical software useful when we have PBL, or when I'm studying away from my desk at home, and don't have all my books. I find that having a black and white, 8 megs, palmOS based pda is entirely adequate. If you have the money, I'd recommend buying an inexpensive one for MS1&2. They upgrade so fast that if you were to spend the money to get a top of the line one now, it would probably be less than the cheapest one on the market when you start MS3, so better to spend about a $100 now, and if you need a more powerful one in a few years, buy it then.