Argos are doing the Canon Selphy DS810 Small Format Photo Printer for 39.99 at the moment:

Canon Selphy DS810

  • Compact, inkjet photo printer with built-in 2.5in colour LCD viewer.
  • View, edit and print digital photos from all popular memory cards - no PC connection needed.
  • Prints photos directly from camera phones using IrDA and Bluetooth (with option BT adapter).
  • Prints a high quality, borderless photo in approx 85 seconds (camera direct).
  • Direct photo printing from PictBridge compatible digital cameras and camcorders - no PC required.
  • Up to 4800 x 1200dpi resolution FINE print head with 2pl Micro-Nozzles for grain-free prints.
  • Stylish, compact design with simple keypad and intuitive user interface.
  • Windows 2000XP and Mac compatible, USB connectivity.