If you are interesting in a palm, the M500 can be found on ebay for around $30USD. It's a great little piece of hardware, and can do everything that you need. It has 8MB of built-in memory, and you can expand that with a SD card, but I've never found a need for that as most palm apps are tiny. It's a greyscale device, but that nets you longer battery life, and frankly it is easier to read off of for long periods, aka reading ebooks. If you are considering the palm, you'll of course want some distractions *games* and I suggest SFCave and Traffic as both are simple yet fun games that are quick to learn and play.