o2 have one of their latest handsets - the new o2 JET with a massive battery life - on their site on PAYG for just £59.99. With the phone you get a FREE bluetooth headset worth £49.99. Well worth taking a look, especially if you're like me and you always forget to charge your phone and it never has battery when you need it!! Also, if you purchase via QuidCo.com you can get £3.50 cashback if you wish.
The O2 Jet has an amazing battery life with up to 10 hours talk time and up to 540 hours (22 days) of standby time between charges. It's a compact quad-band phone with easy to use email. International jetsetters will be able to stay in touch from almost anywhere in the world. It also has Bluetooth, PC synchronisation and a speakerphone.