Charger, and data cable if you wanna transfer files if your computer doesn't have bluetooth. You'll need a Ca-53 or DKU-5. That should be all your need, thats all I use with my 6265i. Also you may want to get a Mini SD card and headphone adapter for ...
Buying insurance with your phone at the time seems so stupid, but when you think you'll never need it, that's when you either loose your phone, drop it and it shatters, or it gets wet.
There are a few things you should think about: 1 Does his phone support your network i.e is it unlocked? 2 Is his phone scratched, damaged or otherwise compromised? 3 Do you trust him? 4 Are either of you under a contract with your phone that would c...