I just started looking at PDAs for the first time and they are extremely confusing with all of the different formats and proprietary expansion slots. I would like to spend around $200. I guess I will probably have to go with a monochrome display and 8MB, but which brand? I saw the Casio BE300 at Best Buy for $199 and it's color and has 16MB of ROM, but it has MS CE 3.0 which is old, right? Can the OS be upgraded? There must be something wrong with it if it's that cheap. Give me some opinions for what I should look for. I will hopefully get it for Christmas so the prices might come down even more by then. Thanks