For the ultimate PSP package, get the 16 in 1 Starter Kit.  It includes all the basic essentials plus a high quality speaker system to maximize the full potential of your portable entertainment device.    

Features:

• Quality speaker system provides stereo sound from your PSP
• Protective carrying case designed for a perfect fit
• 4 UMD Movie & Game cases provide protection and storage
• 3 analog stick caps for enhanced maneuverability
• USB Data Cable for easy data transfer
• Car Charger for power on the road
• Transparent face plate protects the screen from fingerprints, scratches and dust
• Cleaning chamois for a crystal clear view
• Convenient wrist strap for portability
• Charger docking station holds and charges your PSP